[ARCHIBALD] LIFE AND WORKS OF SIMON NEWCOMB 91 



XLVII. The Let-alone Principle. N.A.R., Jan., 1870. Vol. 110, pp. 1-33. 

 XLVIII. The Labor Question. N.A.R.. CXL, 122-125. July. 1870. 

 XLIX. Mode of observing transits of Venus. S.JI. L. 74-83. July, 1870. Illus- 

 trated. (Read before the National Acad. Science, April 13, 1870.) 

 L. The Coming transits of Venus. (The substance of a paper read before 



the 13. Session of the Ami'r. Ac.ul. Sci., held at Washington). Nature, 



II, 343-345; Aug. 25, 1870. 

 LI. Sur la manière d'observer le prochain passage de Venus, par M. S. New- 



comb; note de M. Faye. Comptes Rendus, Sept. 12, 1870; LXXL, 413. 

 LU. Considerations on the inequalities in the moon's motion. S. Jl., 183-194, 



Sept., 1870. (Read before the National Academy, April, 1870). 

 LIII. On a very accurate method of determining the relative positions of the 



centres of the sun and moon during a nearly central eclipse of the sun. 



A.N., LXXVI, cols. 365-368. Oct. 27, 1870. 

 LIV. Aperçu d'une méthode directe et facile pour effectuer le développement 



de la fonction perturbative et de ses coefficients differentieîs. Comptes 



Rendus, LXX, 385-388. Feb. 21, 1870. 

 LV. Sur les inégalités de la lune dues à l'action des planètes. (Extrait d'une 



lettre à M. Delaunay). Comptes Rendus, LXXI, 384-380, 1870. 

 LVI. Review of P. A. Secchi's " Le Soleil, etc.," and P. A, Proctor's " The 



Sun, etc." Nature, IV., 41-43. May 18, 1871. 

 LVIL Review of P. A. Secchi's " Le Soleil, etc." Nature, IV., 160. June 29, 



1871. [Reply by Newcomb to a complaint of R. Proctor in a letter 

 dated May 18, on the Review LVI J. Proctor replies to this letter, 

 making interesting statements about Newcomb. Nature, IV., 183. July 

 6, 1871. 



LVIII. Phenomena of Contact. Nature, IV., 423. Sept. 28, 1871. 



LIX. The Solar Parallax— a letter dated Oct. 23, 1871. Nature, IV., 100. 

 Nov. 23, 1871. 



LX. On the application of photography to the observation of the transits 

 of Venus. (One of a number of papers published by the Commission 

 on the transit of Venus, Dec. 9. 1874)— pp. 14-25 of Part I, Washington, 



1872. See XCVIII and CXXXlll. 



LXI. On the lunar theory. M.N.R.A.S., XXXI., 2G5-268. 1871. 



LXII. Théorie des perturbations de la lune qui sont dues à l'action des planètes. 

 Comptes Rendus, LXXll., 403-406, 1871. (Read April 3). Also Liou- 

 ville Jl.. XVI, 321-368, 1871. " Remarkable for the boldness of its 

 conception, and constitutes an important addition to theoretical dy- 

 namics." Ency. I3ritaunica. Art. " Newcomb," 1902. 



LXIII. Report on the solar eclipse of Dec. 22, 1870. Washington, 1871. 

 (W.O.. 1869, App. I, p. 7). 



LXIV. Baxter's National Debts. N.A.R., CXIV., 189-193. Jan., 1872. 



LXV. International Copyright. N.A.R., CXIV.. 432-435. April, 1872. (An- 

 onymous ) . 



LXVI. Report on the observation of the total solar eclipse of Dec. 22, 1870, 

 at Gibraltar. W.O., 1869. App. 1, pp. 7-24. Wash., 1872. 



LXVII. Jevon's theory of political economy. N.A.K., CXi\', 4:i.j-4 40 ; April, 

 1872. By " S. N." 



LXVIII. Schreiben des Herrn Prof. S. Newcomb (dated April 1, 1872). A.N., 

 LXXIX., cols. 245-0, 'Slay 17, 1872. [Letter calling attention to the 

 favorable opportunity for determining the ma.ss of Jupiter, which is 

 afforded by its small planet Polyhymnia]. 



