186 RECORD OF SCIENCE FOR 1886. 



Tycho Brahe. See, aho, Astronomy (History of). 



TKiAN(iri,oi:u.v plauoruin et spbuiricoriiin praxis aiithinetica, qna maxinius 

 oorum, pru'sertiin in nstrononiico uhiis comixiiuliost^ uxplicatiir. Nuuc prinmni 

 edidit F. J. Stiulnicka. 40 p. 4to. Pra<;ii' (Ifj'tl), 1886 (M. 21) 



United States Naval Observatory. 



Astronomical observations , . . 1883. App.i. The six iiiuer satellites of 

 Saturn, by A. Hall. 74 p. 4to. Washington, 1880. 



: The same. App. ii. Observations for stellar i)arallax, by A.Hall. G7 p. 



4to. Washington, 188G. 



: The same. App. iii. The observatory temperature room and competitive 



trials of chronometers in 1884 and 188G. 3.") p., 9 pi. 4to. Washington, 1886. 



Report of the superintendent . . . [October 20, 1886]. 20 p. 8ve. Washing- 

 ton, 1886. 



Uranus, p* 139. 



Wilson (H. C): [Observations June 18 to July 5, 1883.] Astron., Nachr., 114: 

 313. 



Uranus (Satellites of). 



Makth (A.' Ephemeris of the satellites of Uranus. Month. Not., 47 : 75-78. 



Variabie Stars, p* 109. 



Hall (M.) : Density of the sun compared with that of Algol. Obsry., 9 : 224. 

 Pickering (E. C.) : Observations of variable stars in 188.5. Proc. Am. Acad. Arts 

 and Sc, 21 (n. s., 13) : 319-335, 1886. Aho, Reprint. 



Venus, p* 133. 



Thackeray (W. G.) : Semidiameter of Venus. Month. Not., 46: 335-336. 



"Warner Observatory. 



History and work of the Warner Observatory, 1883-1886. Vol. 1. 70 p. il, 

 8vo. Rochester, 1887. 



Washburn Observatory. 



PunLiCATiONS of the Washburn Observatory of the University of Wisconsin. 

 Vol. 4. 4+2214-25p. 8vo. Madison, 1886 (M.7.50) 



"Washington University Observatory. 



Pritchett (H. S.) : The Washington University equatorial after the "Lick pat- 

 tern. " Sid. Mess. , 5 : 65-67. 



Yale College Observatory. 



Report for the year [ending June 1, 18S6]. 15 p. 8vo. [New Haven, 1886.] 

 Zodiacal light, p* 126. 



NECROLOGY OF ASTRONOMERS : 1886. 



AuERBACH (Carl Heinrich, August); b. February 24, 1813, at Berlin; d. at Gohlis, 

 October 22, 1886, a)t 73. 



Bassnktt (Tiio.mas); d. February 26, 1887, .-Et. 79. 



BoiLKAU (Gen. J. T.); b. May 26, 1805, at Calcutta; d. November 9, 1886, xt. 81. 



DoRNA (Alessandro), director of the Turin Observatory; b. February 13, 1825, at 

 Asti ; d. at Borgo San Pietro, near Turin, August 19, 1886, ;et. 61. 



Feldkirchner (Chrxstopii), first assistant at the Munich Observatory; b. Feb- 

 ruary 26, 1823 ; d. March 1, 188(). a^t. 63. 



HoiJEL (Jules), professor of mathematics at Bordeaux ; b. , 1823, at Thaon ; d. 



June 14, 1886, at P6riers, ait. 63. 



Krapotkin (Alexander); b. ; d. at Tomsk, August 6, 1886, set. 45. 



Maywai.d (Gustav Adolpii Richard), computer on the Berliner J.ahrbnch ; b. 

 Feluuary 13, 1817, at Leuthou ; d. July 19, 1886, set. 69. 



