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134 pp. 169-172; also in Zeitschrift für Malhemalik und Physik, vol. 24, 1879, Supplement zur historisch-literarischen Abteilung.

In problem 52 of the Rhind papyrus, we consider the quadrilateral ﬁeld with two sides parallel; its area follows by substituting in the formula % (a + c) h, where h is the distance between the parallel sides.

In the review of Peet (1923, 2), Gunn (1926) states that J. H. Cole of the Egyptian Survey Department had informed him that the methods of calculating the area of four- and three-sided ﬁelds exhibited by the Edfu inscription are precisely those used by Egyptian natives to-day.

1857

{{Small-caps|Leonardo Pisano (Fibonacci), Scritti. . . pubblicati da B. Boncompagni, Rome, vol. I, 1857.

"Liber Abaci" (written in 1202): "de disgregatione partium in singulis partibus," and "regula uniuersalis in disgregatione partium numerorum," pp. 77-83; the problem of the seven old wives, pp. 311-312. These sections are discussed in Cantor, Varlesungen über Geschichte der Mathematik, Leipzig, vol. 2, second ed., 1900, pp. 12-13. 26-27. See also L. Rodet (1881,1), Bobynin (1890); Bobynin (1899). and Hultsch (1895). Compare Collignon (1881).

{{center|1860}} {{small-caps|Pihan}}, A. P., Exposé des Signes de Numération usités chez les Peuples Orientaux anciens et modemes, Paris, 1860.

"Numération Egyptienne," pp. 25-41; “numération Assyrienne," pp. 42-44.

{{center|1862}}

{{small-caps|Deveria, T.}}, "Notation des centaines de mille et des millions dans le systéme hiéroglyphique des anciens Egyptiens," Revue Archéologique, Paris, new series, vol. 6, 1862, pp. 253-263.

Reprinted in his Mémoires et Fragments, publiés par G. C. C. Maspero, (Bibliothéque Egyptologique, vol. 4), Paris, vol. 1, 1896, pp. 257-268.

{{center|1865}}

{{Small-caps|Brugsch, H. K.}}, "Ein altiigyptisches Rechenexempel," Zeitschnft für Ägyptische Sprache und Alterthumskunde, Leipzig, vol. 3, 1865, pp. 65-70. 77. {{nop}} {{smallrefs}}