Academy of Sciences] ASTRONOMY. 49 



263. On the use of statements of ancient solar eclipses for correcting the elements of the moon's 



motion, with special reference to Prof. Ginzel's Spezieller Kanon der Finsternisse. 

 Astr. Nach., vol. 154 (Jan. 25, 1901): cols. 197-202. 

 Dated, Washington, Dec. 5, 1900. 



264. Position of the equinox and the values of other elements derived from recent Greenwich 



and Washington observations of the sun. 

 Astr. Jl., vol. 21 (May 21, 1901): 141-142. 



265. Recent astronomical discoveries. 



New York Times (June 16, 1901). 



266. A study of the limiting magnitudes of the Cape photographic Durchmusterung. 



Astr. JL, vol. 21 (June 28, 1901): 153-155. 



267. La periode des taches solaires. 



Paris Bull. Soc. Astr. de France, vol. 15 (Aug., 1901): 355-357. 



268. On the Cordoba Durchmusterung and some conclusions derived from it. 



Astr. JL, vol. 22 (Sept. 18, 1901): 21-26. 



269. An asteroid orbit of great eccentricity [signed by Edward C. Pickering]. 



Harvard College Observatory Circular, no. 63 (Nov. 19, 1901): 2 pp. 



Professor Pickering states that S. Newcomb determined the orbit as given on page 2. 

 Reprinted as: New Planet 1901 HN. 



Astr. Nach., vol. 157 (Dec. 30, 1901): cols. 225-226. 



270. A rude attempt to determine the total light of all the stars. 



Astrophysical JL, vol. 14 (Dec. 1901): 297-312. 



271. "Astronomy," "Eclipse," "Moon," "Sun," "Telescope," in Encylopsedia Britannica, 



10th ed., 11 vols. 

 London, Edinburgh, and New York, 1902. 

 See also nos. 131 and 316. 



272. Remarks on certain determinations of the constant of aberration by the U. S. Coast and 



Geodetic Survey. 

 Astr. JL, vol. 22 (Mar. 20, 1902): 114-115. 



273. The problem of the universe. A discussion of the results of modern science which relate 



to the extent .and structure of the universe. 

 International Mo., Burlington, Vt., vol. 5 (Apr., 1902): 39.5-417. 



Also as "The Structure of the Universe" in Side-Lights on Astronomy (1906): 31-59; see no. 300 of this 

 Section. 



274. What the astronomers are doing. 



Harper's Mag., New York, vol. 105 (July, 1902): 246-249. 



Also in Side-Lights on Astronomy (1906): 106-119; see no. 300 of this Section. 



275. On the statistical relations among the parallaxes and the proper motions of the stars. 



Astr. JL, vol. 22 (Oct. 1902): 165-169. 

 Dated Maloja, Engadine, Oct. 15, 1902. 



276. Are other worlds inhabited? 



The Youth's Companion, Boston, vol. 76 (Dec. 11, 1902): 639-640. 



277. Astronomy for Everybody; a Popular Exposition of the Wonders of the Heavens. 



New York, McClure, Phillips & Co., Dec. 1902. 15+333 pp. 



"The present work grew out of articles contributed to McClurc's Magazine [nos. 241, 245, 253] a few years since on the unsolved 



problems of astronomy, total eclipses of the sun and other subjects." Piiface. 

 In the Science for Everybody Series. 



In the fall of 1910, 5,000 copies of this work had been sold in America alone. In 1918-19, 500 copies of this work were sold to the 

 American Library Association for the use of the U. S. Army overseas. It is the "best seller" of all books listed in this Section. 

 Doubleday Page is now the publisher. 

 London, Isbister & Co., June, 1903, 15+341 pp. With an introduction by Sir Robert S. Ball. Cheap 

 ed., London, 1907, 16+341 pp.; other reprints in London by I. Pitman & Sons, 1919 and 1923. 

 Reviewed Nation, New York, vol. 76 (Feb. 26, 1903): 172. 

 Reviewed Athenaeum, London, vol. 2 (Aug. 1, 1903): 261. 

 Reviewed Nature, London, vol. 69 (Nov. 26, 1903): 75-76. 

 Reviewed The Observatory, London, vol. 26 (Oct., 1903): 394-396. 



277A. Russian translation — Astronomiia dlia vsiekh Per. s Angl., s predisl. A. Orbinskago 

 (Astronomy for Everybody — Translation from the English, with an introduction, by 

 A. Orbinskij.) 

 Odessa, "Technik," 1905. 14+285 pp. 

 Second edition, 1911. 20+288 pp. 



