48 



Exposures. Snow and Vegetation. — Ch. II. Map of the Moon. Comparison 

 ■witli other Maps. Method of Constiuction, Accurancy, and Scale of Map. 

 Interpolation of Latitudes and Longitudes frora the Map. Errors of other 

 maps. Discussion of Nomenclature. Estimáte of the number of Ci'aters 

 visible upon the Moon. Comparison with other Photogi-aphic Atlases. 

 Table IV, Index to Ñames. — Ch. III. Linné. Flato. Messier. Changes of 

 Plinius and Pallas. Linné during different Lunar Eclipses. Table V, Dia- 

 meter of Linné in 1903. Table VI, Summary. Photographic Detall of the 

 Floor of Plato. Changes iu Messier and Messier A studied photographical- 

 ly. Table VTI, Description of Figures. Explanation of changes. — Ch. IV. 

 Absolute Altitudes and Positions upon the Moon. Method of Investigation 

 adoptad. 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. Lin.— No. I. Stars near the South Pole. Pl. I.— No. 11. Stars 

 near the North Pole.— No. III. The 9th Satellite of Saturn, by W. H. 

 Pickering. Pl. I & H.— 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. 

 Pickeñng. 2 figs. — No. VI. Investigations on the orbit of Phoebe, by 

 Frank E. Eoss, Ph. D. — No. Vil. Second Supplement to Catalogue of Va- 

 riable Stars. — No. VIII. Martian Meteorology, by W. H. Pickeñng. Pl. 

 I.— No. IX. The 9th and 10 th Satellites of tíatu'rn, by W. H. Pickeiing. 



ClRCüLARS. No. 101. Poí?itions of Ocllo (475) during 1904, by Ed. 

 C. Pickeñng.— No. 102. Positions of Phoebe in Máy, 1905, by Ed. C. Pic- 

 keñng.- No. 103. Positions of Ocllo (475) duñng 1905.— Nu. 104. H 1174. 

 A New Algol Variable, 035727, by Ed. C. Pickeñng.' 



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