Page:Memoirs of Royal Astronomical Society Volume 01.djvu/15

vi vi CONTENTS.

V. On the construction and use of a Micrometrical Eye-piece of a Telescope, By the Rev. W. Pearson, LL.D. F.R.S. and Trea- surer of this Society ........ 82

VI. On the construction of a new Position-Micrometer, depending on the doubly-refractive power of Rock Crystal, By the Ret. W. Pear- son, LL.D. F.R.S. and Treasurer of this Society. 103

VII. Observations on the best mode of examining the double or com- pound Stars ; together with a Catalogue of those whose places have been identified. By James South, Esq. F.R.S. and L.S. Honorary Member of the Cambridge Philosophical Society, $c. . lfl$

VIII. On the new Meridian Circle at Gottingen. Communicated

by Professor Gauss, in a Letter to the Foreign Secretary. 129

IX. On the Solar Eclipse which took place on September 7, $820.

By P. Baily, Esq. F.R.S. and L.S. 135

X. On the Solar Eclipse which took place on September 7, 1820. Compensated in a Letter to J. F. W. Herschel, Esq., Foreign

. t : Sectary, from Professor Moll of Utrecht 144

Xh (fa-l&e-fymet discovered in the Constellation Pegasm in 1881. t . • %%fy£eUhicated in a Letter to J. F. W. Herschel, Esq., Foreign
 * Secretary, from M. Nicollet of Paris 154

XII. On the Comet discovered in the Constellation Pegasus in 1821 : and on the luminous appearance observed on tite dark side of the Moon on February b, 1821. Communicated in a Letter to J. F. W. Herschel, Esq., Foreign Secretary, from Dr. Oldehs of Bremen. . . .... . . . 156

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