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
Digitized by
