HaU] 



581 



[Hall 



Observations of double stars made at the United States 



Naval Observatory. Part Secniiri. 1880-91. [1892.] 

 U. S. Naval Obs, Obsns., 1888, E. 1-E. 203. 



The constant of aberration. [1888.] Astr. Jl., 8, 



1889, 1-5, 9-13; 12, 1893, 8. 



The extension of the law of gravitation to stellar 



systems. [1888.] Astr. .11., 8, 1889, 65-68. 



The satellite of Neptune. [1888.] Astr. Jl., 8, 



1889, 78. 

 The appearance of Mars, June 1888. [1888.] Astr. 



Jl., 8, 1889, 79. 



Observations of Hyperion. [1888-91.] Astr. Jl., 8, 



1889, 95-96; 11, 1892," 36. 



Observations of Mars. [1888-94.] Astr. Jl., 8, 1889, 



98; 12, 1893, 185-188; 13, 1894, 48. 

 The iHoblem of alignment. [1888-89.] Astr. Jl., 8, 



1889, 143, 147. 



Note on symbols. [1889.] Ann. Math., 5 (1889- 



90), 19. 



The resisting medium in space. Sidereal Messenger, 



8, 1889, 433-442. 



The white spot on the ring of Saturn. [1889.] Astr. 



Jl., 9, 1890, 23. 

 The position of the Washington 26-ineli refractor, 



1876-89. [1889.] Astr. JL, 9, 1890, 32. 

 The deduction of planetary masses from the motions 



of comets. [1889.] Astr. JL, 9, 1890, 47. 



Note on the ring-nebula in Lyra. [1889.] Astr. JL, 



9, 1890, 64. 



Observations of 70 Ophiuehi made at the U. S. Naval 



Observatory. [1889.] Astr. JL, 9, 1890, 75. 



Observations of Comet d 1889 (Brooks) made at the 



U. S. Naval Observatory. Astr. JL, 9, 1890, 135, 165- 

 166; 12, 1893, 160. 



The thickness of Saturn's ring. [1890.] Astr. JL, 



10, 1891, 41-42. 



The latitude of the Naval Observatory. [1890.] Astr. 



JL, 10, 1891, 57-58. 

 Observations of Eucharis (181), made at the U. S. 



Naval Observatory. [1890.] Astr. JL, 10, 1891. 62-63. 

 Observations of the .'satellites of Mars in ls90, made 



at the U. S. Naval Observatory. [1890.] Astr. JL, 10, 



1891, 74-75. 

 Observations of fj.' Herculis. [1890-92.] Astr. JL, 



10, 1891, 124 ; 12, 1893, 79. 



The spirit level. Sidereal Messenger, 10, 1891, 



187-188. 

 What is force? [1888.] Washington Phil. Soc. Bull., 



11, 1892, 583-587. 



Problem-solving. [1888.] Washington Phil. Soc. 



Bull., 11, 1892, 598-600. 



The solar parallax and the mass of the Earth. [1891.] 



Astr. JL, 11, 1892, 20-21. 



Observations of j3 Delphini, t Cygni and f Ursse 



Majoris. [1891.] Astr. JL, 11, 1892, 54. 



The orbit of lapetus. Astr. JL, 11, 1892, 97-102. 



The relative motion of 61 Cygni. Astr. JL, 11, 1892, 



140-141, 168. 



Notes on double stars. [1892-93.] Astr. JL, 12, 



1893, 4-6, 33-36; 13, 1894, 113-114, 119-121. 



Occultation of Mars, 1892 July 11. [1892.] Astr. JL, 



12, 1893, 55. 



Note on the masses of Mars, Saturn, Uranus and 



Neptune. [1893.] Astr. JL, 13, 1894, 28-29. 



Note on the perturbations of Flora by Mars and the 



Earth, and on Beijsnow's tables. [1893.] Astr. JL, 13, 



1894, 111-112. 



On Gauss's method of elimination. [1894.] Ann. 



Math., 8 (1893-94), 64. 

 A suggfstion in the theory of Mercury. [1894.] A.str. 



JL, 14, 1895, 49-51. 



The orbits of double stars. [1894.] Astr. JL, 14, 



1895, 89-96. 



The general perturbations of Nemausa of the first 



order by Jupiter. Astr. JL, 16, 1896, 129-132. 



Note on the convergence of the series in elliptical 



motion. [1896.] Astr. JL, 17, 1897, 53-54. 



A sketch of theoretical astronomy, [1897.] Popular 



Astr., 5, 1898, 9-16. 

 Ephemeris of Winnecke's Comet, a 1898. Astr. JL, 



18, 1898, 130. 



Note on velocities. Astr. JL, 18, 1898, 139-140. 



Note on the nlanet DQ. Popular Astr., 6, 1898, 



567-568. 



The orbit of the satellite of Neptune. [1898.] Astr. 



JL, 19, 1899, 65-66. 



Spheres of activity of the planets. Popular Astr., 7, 



1899, 180-181. 



Motion of the perihelion of Mercury. Astr. JL. 20, 



1900, 185-186. 



The Harvard observations of the satellite of Neptune 



in 1847 and 1848. Astr. JL, 20, 1900, 191-192. 



The EuLER-L.^iiBEBT equation for parabolic motion. 



Popular Astr., 8, 1900, 2-4. 

 Hall, .Uaph. & Prisby, Eili/ai: Sfe Frisby & HaU. 

 HaU, Asaph, Frisby, Kdyar, & 'Winlock, William 



C[rau\ford]. Observations of comets at the U. S. Naval 



Oljservatory. Sidereal Messenger, 5, 1886, 19. 

 Hall, Asaph (jun.). Notes on Gauss's Theoria Motus, 



.section 114. ' [1884.] Ann. Math., 1 (1884-85), 84-88. 



Elements of Comet 1885. ..(Barnard). Astr. Nachr., 



112, 1885, 291-292. 



Kesearches with the heliometer. Determination of 



the orbit of Titan and the mass of Saturn. [1889.] Yale 



Univ. Obs. Trans., 1, 1887-1904, 107-148. 

 The secular perturbations of the Earth produced by 



the action of Mars. [1891.] Astr. JL, 11, 1892, 



25-28, 40. 

 Orbit of Neptune's satellite. [1892.] Astr. JL, 12, 



1893, 22-24. 

 Observations of Transit of Mercury, 1894 November 9, 



10, made at the Detroit Observatory, Ann Arbor, Mich. 



[1894.] Astr. JL, 14, 1895, 149. 



The aberration constant from observations of Polaris. 



Amer. Ass. Proc, 1899, 69. 



The aberration constant from meridian zenith dis- 

 tances of Polaris. Science, 10, 1899, 793. 



Address [to the Math. & Astron. Sect.]. On the 



teaching of astronomy in the United States. Amer. Ass. 

 Proc, 1900, 23-31. 



HaU, Asaph (Jan.), & Eastman, John Robie. See Eastman 

 A: Hall. 



HaU, I!. M. A preliminary report on a part of the 

 water-powers of Georgia compiled from the notes of 

 C. C. Anderson, late Assistant Geologist and from other 

 sources. Georgia Geol. Surv. Bull., 3, 1896, 150 pp. 



HaU, C[hristopIier] G[eorge]. For biographical notice see 

 Ent. Month. Mag., 26, 1890, 304-305. 



Notes on three verv rare species of British Coleoptera. 



[1885.] Ent. Month. "Mag., 21, 1884-85, 220-222, xx. 



Butterflies occurring at Dover and its vicinity since 



1860. [1887,] Ent. Month. Mag., 24, 1887-88, 77-79. 



HaU, C. M., & Bolley, Henry L. See BoUey & HaU. 

 HaU, Charles G. *The estimation of mineral oil in the 



presence of other oils. [1882.] Amer. Inst. Min. Engin. 



Trans., 11, 1883, 88-89. 

 Rapid determination of bromine in presence of chlorine. 



Jl. Anal. Chera., 4, 1890, 167-169. 

 HaU, Charles E. 'Catalogue of the Geological Museum. 



Pennsylvania Geol. Surv. Eep., [0], 1878, 217 pp.; [0-], 



1880, 272 pp. 



*The geology of Philadelphia county and of the 



soutliern parts of Montgomery and Bucks. [With 

 analyses of rocks b,y Dr. F. A. Genth and F. A. Genth, 

 jnii.] Pennsylvania Geol. Surv. Rep., C", 1881, 145 pp. 



Laurentian magnetic iron ore deposits of northern 



