BIBLIOGRAPHY OF ASTRONOMY: 1887. 47 



r 



Precession — Cnntinued. 



S AFFORD (T. H.) Reduction of star-places by Bohnenberger's method. Month. 



not., 48: 20-26. 

 Struve (L.) Bestimmung dei- Constante der Praecession, und der eigenen Be- 



v/egung des Sonnonsystems. 34 p. 4to. Leipzig, 1887. (M. 1.) 



Mem. acad. imp. d. sc. de St. Petersl). 7. s. 35, no. 3. 

 Frizes (Astronomical). 



Danish academy. Prix de I'academie royale Danoise des sciences et des lettres. 



Astron. Nachr., 117 : 63. Also: Bull, astron., 4 : 163. 

 Paris academy. Tableau des prix decornees. Annee 1887. Compt. Rend., 10-5: 



1413. 

 Royal astronomical society. Address by the president ... on presenting the 



gold medal to G. W. Hill. Month, not., 47 : 203-220. 

 [Schubert'schen Preis der Akademie in St. Petersburg.] Astron. Nachr., 118 : 30. 

 Warner (H. H.) Conditions of awarding the Warner comet prizes from Apr. 



1, 1887, to Apr. 1, 1888. Sid. mess., 6 : 225. 

 Projections. 



Radau (R.) Sur une application de la projection stereographique [de la sphere]. 

 Bull, astron., 4: 49. 



Prominences (Solar). See, also, Chromosphere; Sun (Statistics of faculse, promi- 

 nences, spots, etc., for 1886). 

 Fenyi (J.) Grande eruption solaire du P"" juillet 1887, ©"bservee a I'observatoire 

 Haj'nald a Kalocsa. 1 pi. Mem. soc. spettrscp. ital., 16: 102-10.5. Also: 

 L'Astron., 6 : 416-419. 

 Ricco (A.) Protuberanze solari osservate nel regio osservatorio di Palermo nell' 



anno 1886. Mem. soc. spettrscp. ital., 16 : 65-79. 

 Tacchini (P.) Sulle eruzioni metalliche solari osservate al regio osservatorio 

 del collegio Romano nel 1886. Ibid., 8-10. 



Sui fenomeni della cromosfera solare osservati al r. osserv. del collegio 



Romano nel 4" trimestre, 1886. [Protuberanze.] Atti d. r. accad. d. Lincei, 

 s. 4. Rendic, 3: 13. 



Same. P trimestre, 1887. Ibid., 265. 



Osservazioni spettroscopiche solari fatte nel regio osservatorio del collegio 



Romano nel 1" trimestre del 1887. Protuberanze. Mem. soc. spettrscp. 

 ital., 16: 37, 51. 



Same. 2» trimestre, 1887. Ibid., 91, 111. 



Same. 3» trimestre, 1887. Ibid., 12^. 



Observations solaires du deuxieme semestre, 1886. Compt. Rend., 104 : 



216. 



Same. 1«'' trimestre, 1887. 76i<^., 104 : 1082 ; 105 : 210. 



Same. 2« trimestre, 1887. /6i(/., 105 : 211. 



Same. 3« trimestre, 1887. Ibid., 105 : 1002. 



Trouvelot (E. L.) Nouvelle eruption solaire [1887, June 24]. 3 p. 4to. 

 [Paris, 1887.] 



Repr.from: Compt. Rend., 105: 610. 



