Page:Transactions of the Geological Society, 1st series, vol. 4.djvu/254

 {| style="font-size:70%;line-height:140%;text-align:left;" cellspacing="0" cellpadding="2" Reflecting Goniometer P on P || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 72° 28′ 109° 18′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" |
 * style="border-bottom-width:1pt;border-left-width:2pt;border-top-width:2pt;border-style:solid none none solid;" | || style="border-bottom-width:1pt;border-left-width:1pt;border-top-width:2pt;border-style:solid none none solid;" | || style="border-bottom-width:1pt;border-top-width:2pt;border-style:solid none none none;" | || style="border-bottom-width:1pt;border-left-width:1pt;border-top-width:2pt;border-style:solid none none solid;" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-top-width:2pt;border-style:solid solid solid solid;" colspan="3" align="center" | Measurements.
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | Substances || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" colspan="2" align="center" | Primitive Crystal. || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | Reference to Plate 12 || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Haüy || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Bournon || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="top" align="center" | By the
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | Substances || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" colspan="2" align="center" | Primitive Crystal. || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | Reference to Plate 12 || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Haüy || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Bournon || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="top" align="center" | By the
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | Substances || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" colspan="2" align="center" | Primitive Crystal. || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | Reference to Plate 12 || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Haüy || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | According to Bournon || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="top" align="center" | By the
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Cyanite || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | An oblique prism of which the plane P is very nearly a rhomb || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | Fig. 7. M on T || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 106° 6′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 106° 15′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | Haüy || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | M or T on the adjacent plane, over the edge A || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" | 73° 45′
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Corundum || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A slightly acute rhomboid. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 3. P on P || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 86° 38′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 86° || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 86° 4′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | Haüy & Bournon || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | P on P' || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | 93° 32′ || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | 94° || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" | 93° 56′
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Strontian || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A right prism with rhombic bases. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 2. M on M || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 104° 48′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 104°
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | Haüy || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | M on the adjacent plane, over the edge A || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="bottom" | 75° 12′ || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" | 76°
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Carbonate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | An octoheron, of which the common base of the pyramid is rectangular || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 2. M on the opposed plane over the apex || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 70° 30′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 71° 40′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | Haüy || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | M on M || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 108° 20′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | P on its opposed plane over the apex || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="bottom" align="center" | 62° 56′ || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 62° 42′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | P on P || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 117° 18′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | A rectangular tetrahedral prism with square bases. Bournon. || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A rectangular octohedron. Haüy. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig.2 P' on P'
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Carbonate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | An octoheron, of which the common base of the pyramid is rectangular || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 2. M on the opposed plane over the apex || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 70° 30′ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 71° 40′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | Haüy || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | M on M || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 108° 20′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | P on its opposed plane over the apex || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="bottom" align="center" | 62° 56′ || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 62° 42′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | P on P || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 117° 18′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | A rectangular tetrahedral prism with square bases. Bournon. || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A rectangular octohedron. Haüy. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig.2 P' on P'
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-bottom-width:1pt;border-style:none none none none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" | P on P || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none none solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="bottom" | 117° 18′
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | A rectangular tetrahedral prism with square bases. Bournon. || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A rectangular octohedron. Haüy. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig.2 P' on P'
 * style="border-bottom-width:1pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | A rectangular tetrahedral prism with square bases. Bournon. || style="border-bottom-width:1pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:1pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A rectangular octohedron. Haüy. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig.2 P' on P'
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | Sulphate of Lead || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A rectangular octohedron. Haüy. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig.2 P' on P'
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A right tetrahedral rhomboidal prism with rhombic bases. Bournon. || style="border-style:none none none none;" valign="top" align="center" | $$\left. \begin{matrix}\ \\ \ \end{matrix} \right\}$$ || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 11. P on P || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | 101° 30′ || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | || style="border-style:none none none none;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | P on the adjacent plane over the edge a || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="bottom" | 78° 30′ || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" |
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A right prism with rhombic bases. W.P. || style="border-style:none none none none;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 13. P' on P' || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 76° 18′
 * style="border-bottom-width:2pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | P on the adjacent plane over the edge a || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" | 103° 42′
 * }
 * style="border-left-width:2pt;border-style:none none none solid;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="top" | A right prism with rhombic bases. W.P. || style="border-style:none none none none;" valign="top" align="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" align="center" | Fig. 13. P' on P' || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-style:none none none solid;" valign="center" | || style="border-left-width:1pt;border-right-width:2pt;border-style:none solid none solid;" valign="center" | 76° 18′
 * style="border-bottom-width:2pt;border-left-width:2pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-style:none none solid none;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | P on the adjacent plane over the edge a || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-style:none none solid solid;" valign="top" align="center" | || style="border-bottom-width:2pt;border-left-width:1pt;border-right-width:2pt;border-style:none solid solid solid;" valign="bottom" | 103° 42′
 * }
 * }

Oxide of Tine

Pl. 12. Fig. 1.



The crystals of this substance admit of cleavage parallel with all the sides of the common prism, and of its diagonals, as well as the faces of the primitive octohedron, which is obtuse. The first is