ACADEMY OF SCBKC.S.] ASTRONOMY. 45 



211. On the solar motion as a gauge of stellar distances. First paper. 



Astr. Jl, vol. 17 (Dec. 10, 1§96>: 41-44. 



Last sentence: "I hope soon, in a second paper, to treat the subject mnre fully by a modified method." This "second paper" 

 does not seem to have been published, although the subject was treated elsewhere (e. g. nos. 216,217, 221). 



212. "Astronomy," "Photography, Astronomical," "Telescope," in New American Supplement 



to the Encyclopaedia Britannica edited . . . [by] D. O. Kellog, 5 vols. 

 New York and Chicago, The Werner Co., 1897. 



213. A new determination of the precessional constant with the resulting precessional motions. 



Astr. Papers, vol. 8, pt. 1 (1897): 1-76. 



214. Note on the foregoing article [this is, Nyren's determination of constant aberration at 



Pulkova.] 



Astr. Jl, vol. 17 (Feb. 19, 1897): 90. 



215. An ambitious paradoxer. • 



Science, New York, n. s., vol. 5 (Mar. 5, 1897): 400. 



Letter concerning Stephen H. Emmens, author of The Argentaurum Papers, part I. 



216. The problems of astronomy. An address at the dedication of the Flower Observatory 



at the University of Pennsylvania, May 12, 1S97. 

 Lancaster, Pa., The New Era Printing Co., 1897, 20 pp. 

 Also in Science, New York, vol. 5 (May 21, 1897): 777-7S5. 



An extract of this, entitled "The extent of the Universe," appeared in Current Lit., vol. 22 (Dec., 1897): 560. An extract, 

 entitled "Professor Newcomb on the distances of the stars," appeared in Nature, London, vol. 56 (June 10, 1S97): 139-140. 

 Also in Smithsonian Report, 1896 (1898): 83-92. 

 Also in Side-Lights on Astronomy, under the title "The evolution of astronomical knowledge" (1906): 



258-273; see no. 300 in this Section. 

 Also in the series Little Masterpieces of Science, edited by George lies: The Skies and the Earth, by R. A. 

 Proctor, S. Newcomb, C. Young, T. A. Huxley, G. lies, C. Lyell, S. Shaler. 

 New York. Doubleday, Page & Co. (1902): 33-52. 



The frontispiece of the volume is a portrait of Newcomb, and there is a brief biographical note. 



216A. German translation — Die Probleme der Astronomic 



Himmel undErde, Berlin, vol. 10 (Nov., 1897): 74-79 (Dec, 1897): 126-135. 



Also in Naturwissenschafiliche Rundschau, vol. 12 (Aug. 14, 1897): 413-116; (Aug. 21, 1897): 429-431. 



217. Solar motion and stellar distances. 



The Observatory, London, no. 254 (June, 1897): 247-248. 



A letter to the editor dated May 17, 1S97, and referring to the May number, in which was "an appreciative notice of a paper of 

 mine On the Solar Motion as a Gauge of Stellar Distances" (no. 211). 



218. A new determination of the precessional motion. 



Astr. Jl, vol. 17 (June 11 and July 2, 1897): 161-167, 184. 

 Reprinted in pamphlet form. 



219. Reasons for the adoption of new values of the precessional motions; a reply to the remarks 



of Boss in A. J. 410. 

 Astr. Jl, vol. 18 (Sept. 27, 1897): 33-35. 



220. Aspects of American astronomy. 



Pop. Astr., vol. 5 (Nov., 1897): 351-367. 

 Also in Science, New York, vol. 6 (Nov. 12, 1897): 709-721. 

 Also in Astrophysical Jl, vol. 6 (Nov., 1897): 289-309. 

 Also in Smithsonian Report, 1897 (1898): 85-99. 



Also in Side-lights on Astronomy (1906): 274-299; see no. 300 in this Section. 



Also in Business Administration [a textbook of La Salle Extension University, Chicago], edited by M. 

 La Follette, W. M. Handy, and C. Higgins. Chicago, DeBower-Chapline Co., vol. 7 (1909): 67-83. 

 An address delivered at the University of Chicago, Oct. 22, 1897, in connection with the dedication of the Yerkes Observatory. 



221. The solar motion as a gauge of stellar distance. 



Astrophysical Jl, vol. 6 (Dec, 1897): 441. 



Under " Proceedings of the conference held at the Yerkes Observatory, October 18-21, 1897." Cf. no. 211. 

 Also in Publ Astr. and Astrophysical Soc. of America, vol. 1 (1910): 27-28. 



222. Catalogue of the fundamental stars for the epochs 1875 and 1900 reduced to an absolute 



system. Prepared by and under the direction of Simon Newcomb. 

 Astr. Papers, vol. 8, pt. 2 (1898): 77^03. 

 Preface by Wm. Harkness, dated Mar. 1, 1899. 

 Introduction by Simon Newcomb, dated May 16, 1S9S. 

 Notes and errata by W. G. Thackeray are given in Mo. Notices R. Astr. Soc., vol. 63 (Nov., 1902): 38. 



