80 ROYAL SOCIETY OF CANADA 



For some time past, he has been conducting investigations under 

 the auspices of the Carnegie Institute, "for determining the elements of 

 the moon's motion and testing the law of gravit}'."' Professor Xev\-- 

 comb's first work of importance was embodied in a memoir, "On the 

 Secular Variations and mutual Eclations of the Orbits of the Asteroids/' 

 communicated to the American Academy of Arts and Sciences in 1860. 

 But his great work, colossal in conception and carried on with remark- 

 able unity of purpose for more than twenty years, was "the building up, 

 on an absolutely homogeneous basis, of the theor}'- and tables of the whole 

 planetary system." Special mention should also be made of his able 

 researches in connection with the theory of the moon's motion. 



It can hardly be expected that the following lists are either com- 

 plete or free from error ; but it is hoped that nothing of importance has 

 been omitted and that errors may be of minor importance. Professor 

 Xewcomb has expressed himself as marvelling at the completeness of the 

 last list, Eeports of speeches and addresses, and letters to newspapers 

 have been included in the list of "writings" and it has been designed 

 to make mention of everything published in every edition and in every 

 language. It was found for example, that there were English, Norwe- 

 gian, German and Eussian editions of Popular Astronomy first published 

 in 'New York in 1878. A few comments and notices of reviews have 

 been added after some titles but no attempt at completeness has been 

 made along this line. 



For assistance in the preparation of this paper, my thanks are 

 due to the members of Professor ISTewcomb's family for much valuable 

 information and to the officials of the Boston Public Librarj-, the 

 Harvard University Libraries and tJie Library of the Eoyal Astronomical 

 Society, London, for their unvarying courtesy. 



ABBREVIATIONS. 



A.N. Astronomische Nachrichton — Kiel. 



Astr. JI. Gould's Astronomical Journal — Cambridge, Mass. 



Astr. Papers Astronomical papers prepared for the use of the American Ephe- 

 meris and Nautical Almanac under the direction of Simon New- 

 comb, Ph.D., LL.D., Professor and U. S- Navy Superintendent 

 [till 1897]. Vol. I. issued in 1SS2. 

 Bull. Math- Bulletin of the New York Mathematical Society. 

 Col. Column. 



Ct.JI. Journal fur die reine und angewandte Mathematik. Fortsetzung des 



von A. L. ( 'relie gegrundotc Journal — Berlin. 

 Jl. Journal. 



M.N.R.A.S. Monthly Notices of the Royal Astronomical Society — London. 

 N.A.R. North American Review. 



O. The Observatory — London. 



Phil- Philosophical. 



