WAL] 



246 



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Walker, Sears C. 8. Report of the Committee 

 on the Solar Eclipse of 14 and 15 May 1836. 

 Amer. Phil. Soc. Trans. VL, 1839, pp. 379-394. 



9. On determining longitudes from corre- 

 sponding observations of meteors. Amer. Phil. 

 Soc. Proc. I., 1840, pp. 161-163. 



10. On the August showers of meteors. 



Amer. Phil. Soc. Proc. I., 1840, pp. 261-264. 



11, Lunar occultations of the fixed stars. 



Latitude and longitude of Jthe U. S. Observa- 

 tories. Astr. Nachr. XVHL, 1841, col. 73-78. 



12. Researches concerning the periodical 



meteors of August and November, [1841.] 

 Amer. Phil. Soc. Trans. VIH., 1843, pp. 87- 

 140 ; Silliman, Journ. XLIL, 1842, pp. 401- 

 402. 



13. Letter on the Great Comet of 1843. 



Astron. Soc. Month. Not. VI., 1843-45, pp. 

 2-3. 



14. [Observations of the recent comet.] 



Astr. Nachr. XXL, 1844, col. 109-110. 



15. Computation of the orbit of Neptune. 



Amer. Acad. Proc. L, 1846-48, pp. 146-148. 

 - — 16. Elliptic elements of Neptune. Amer. 



Acad. Proc. I., 1846-48, pp. 285-286, 331- 

 332. 



— 17. Investigation of the planet Neptune. 

 Amer. Phil. Soc. Proc. IV., 1847, pp. 31 1-320. 



— 18. Elements of the planet Neptune. 

 Amer. Phil. Soc. Proc. IV., 1847, pp. 332-335, 

 339-340 ; Astr. Nachr. XXVIL, 1848, col. 63- 

 64 ; Silliman, Journ. V., 1848, pp. 153-154. 



— 19. [Conclusion respecting Le Vekrier's 

 planet.] Silliman, Journ. III., 1847, p. 441. 



— 20. [On the identity of Neptune with a 

 star observed by Lalande.] Silliman, Journ. 

 IV., 1847, pp. 133-135. 



21. [Researches on the orbit of Neptune.] 



Astr. Nachr. XXVL, 1848, col. 65-78. 



22. [Pure elliptic elements of Neptune.] 



Astr. Nachr. XXVL, 1848, col. 97-100. 



23. [Account of the telegraphic operations 



for fixing the longitude of Washington, Jersey 

 City, and Philadelphia.] Astr. Nachr. XXVIL, 

 1848, col. 121-126. 



24. Application of the galvanic circuit to 



an Astronomical Clock and Telegraph Register 

 in determining local differences of longitude, and 

 in astronomical observations generally. Silli- 

 man, Joura. Vn., 1849, pp. 206-217. 



25. Examination of Kirkwood's Analogy. 



[1849.] Silliman, Journ. X., 1850, pp. 19-26. 



' 26. Report on the experience of the Coast 



Survey in regard to telegraph operations, for 

 determining the longitude. [1849.] Silliman, 

 Journ. X., 1850, pp. 151-161. 



27. Ephemeris of Neptune for the opposi- 

 tion and autumn quadrature 1849. Astr. Nachr. 

 XXXI., 1851, col. 69-76. 



Walker, Sears C. 28. Elements of Petersen's 

 Comet. Astr. Nachr. XXXL, 1851, col. 127- 

 128. 



29. [Comparison of elements of Neptune.] 



Gould, Astron, Journ. L, 1851, p. 47. 



30. On the recent telegraph operations of 



the U. S. Coast Survey. Gould, Astron. Journ. 

 L, 1851, pp, 50-55. 



— 31. Ephemeris of Neptune, 1850. Gould, 

 Astron. Journ. L, 1851, pp. 71-72, 73-74, 



32. On the determination of the velocity 



of the galvanic current by means of the electro- 

 chemical telegraph. On the recent telegraph 

 operations of the U. S. Coast Survey. Gould, 

 Astron. Journ. L, 1851, pp. 105-108. 



— 33. On the computation of co-efficients in 

 the developement of the perturbative function. 

 Gould, Astron. Journ. I., 1851, pp. 129-131. 



— 34. Ephemeris of Neptune, for 1851. 

 Gould, Astron. Journ. L, 1851, pp. 185-187 ; 

 Smithson. Contrib. IL, 1851 (Append. I-IIL). 



35. Researches relative to the planet Nep- 



tune. Smithson. Contrib. IL, 1851. 

 — 36. Ephemeris of the planet Neptune for 

 the year 1852. Gould, Astron. Journ. IL, 1852, 

 pp. 37-38 ; Smithson. Contrib. Ill,, 1852. 



37. Investigations which led to the coinci- 



dence between the computed place of the planet 

 Le Verrier, and the observed place of a star 

 recorded by Lalande, in May 1795. [1847.] 

 Amer. Phil. Soc. Trans. X., 1853, pp. 141-155. 



Walker, Sears C, and Daniel Eirkwood. 

 [On the analogy between the times of rotation of 

 the primary planets, discovered by Bjerkwood.] 

 Astr. Nachr. XXX., 1850, col. 11-14. 



Walker, Sears C, and M. F. Maury. Obser- 

 vations of the June comet, of Encke's, and of 

 Biela's. Astr. Nachr. XXIV., 1846, col. 133- 

 146. 



Walker, Sears C, and Andrew Talcot. Deter- 

 mination of the longitude of several stations 

 near the northern boundary of Ohio from tran- 

 sits of the moon and moon-culminating stars, 

 observed in 1835. [1838.] Amer. Phil. Soc. 

 Trans. VI,, 1839, pp. 241-266. 



Walker, W. [On the new planets ; present situa- 

 tion of Ceres.] Nicholson, Journ, IL, 1802, pp. 

 21-22. 



Walker, W. Memoir on the coal found at 

 Kotah, &c., with a note on the anthracite of 

 Duntimnapilly. Bengal, Asiat, Soc. Journ. X., 

 1841, pp. 341-344. 



Walker, William. On the geological changes 

 produced by the Saxicava rugosa in Plymouth 

 Sound. Brit. Assoc. Rep. 1841 {pt. 2), pp. 66- 

 67; Froriep, Notizen, XIX., 1841, col. 257- 

 261. 



— — 2. Observations on oceanic waves. Brit. 

 Assoc. Rep. 1842 {pt. 2), pp. 21-22. 



