48 
Exposures. Snow and Vegetation.—Ch. IL. Map of the Moon. Comparison 
with other Maps. Method of Construction, Aceurancy, and Scale of Map. 
Interpolation of Latitudes and Longitudes from the Map. Errors of other 
maps. Discussion of Nomenclature. Estimate of the number of Craters 
visible upon the Moon. Comparison with other Photographic Atlases. 
Table IV, Index to Names.—Ch. IL. Linné. Plato. Messier. Changes of 
Plinius and Pallas. Linné during different Lunar Eclipses. Table V, Dia- 
meter of Linné in 1903. Table VI, Summary. Photographic Detail of the 
Floor of Plato. Changes in Messier and Messier 4 studied photographical- 
ly. Table VII, Description of Figures. Explanation of changes.—Ch. IV. 
Absolute Altitudes and Positions upon the Moon. Method of Investigation 
adopted. Table VIII, Absolute heights of the craters. Table IX, Compa- 
rison with Franz's Determinations. Ellipticity of Moon's Equator. Table 
X, Corrected Positions of the Craters. 
Vol. LUIT.—No. 1. Stars near the South Pole. Pl. 1.—No. II. Stars 
near the North Pole.—No. III. The 9th Satellite of Saturn, by W. H. 
Pickering. Pl. 1 € U.—No. IV. A Study of Eratosthenes, by W. H. Pic- 
kering. Pl. I-IV.—No. V. Phoebe, The 9th Satellite of Saturn, by W. H. 
Pickering. 2.igs.—No. VI. Investigations on the orbit of Phoebe, by 
Frank E. Ross, Ph. D.—No. VIL. Second Supplement to Catalogue of Va- 
riable Stars. —No. VIII Martian Meteorology, by W. H. Pickering. Pl. 
1.—No. IX. The 9th and 10th Satellites of Saturn, by W. H. Pickering. 
CIRCULARs. No. 101. Positions of Ocllo (475) during 1904, by Ed. 
C. Pickering.—No. 102. Positions of Phoebe in May, 1905, by Ed. C. Pic- 
kering.—No. 103. Positions of Ocllo (475) during 1905.—No. 104. H 1174. 
A New Algol Variable, 035727, by Ed. C. Pickering. 
