58 INDEX CATALOGUE. 



Struve, 0. : Catalogus Librorum in Bibliotbeca Spec. Pulcovensis, 8vo, 

 1858, p. 560. [Bibliography of nebula? and clusters.] 



: Observations de la grande nebuleuse d' Orion • avec 4 Planches. 



Mem. de I 1 Acad. Imp. de St.Petersb., tome, v, No. 4, 7th series, 

 1862. [Part 1, observations by Liaponoff ; part 2, additions 

 by Struve.] 4°. 



: Memoire sur la nebuleuse &' Orion, [extrait.] M. M., ii, p. 517. 



: Sur la nebuleuse d'Orion. Bull, de la Classe Phys-Math., xvi, 1858, 



col. 113 



Mon. Not. R A. S., xvii, p. 225. [Stars in nebula Orionis.~\ 

 [Nebula in Taurus (variable.)] Mon. Not. R. A. S., xxii, p. 242. 

 M. M., iii, p. 535. [Observations of various nebula? at Malta.] 

 M. M., iii, p. 550. [Variability of the Orion nebula.] 

 Observations de quelques nebuleuses, M. M., iii, p. 569. Bull, de 



I' Acad. Imjy. de St. Petersbourg, vii, p. 353. 

 Entdeckung einiger schwachen Nebelflecke, M. 31., iii, p. 689. 



Bull, de V Acad. Imp. de St. Petersbourg, ix, p. 569. 

 M. M., iv, p. 395. [Discovery of 8 faint nebula?. ] Bull, de 



I' Acad. Imp. de St. Petersbourg, xiv, p. 248. 

 P. T., 1861, p. 738. [Measures of stars in the Dumb-bell nebula.] 

 V. J. S., 1870, p. 25. [Review of Rosse on Nebula of Orion.} 

 V. J. S., 1870, p. 133. 

 V. J. S., 1874, p. 64. 

 See Weisse. 



Struve, W. : Catalogus Novus Stell. Duplic, 1827, p. 88. [Nine new 



nebula? with positions for 1826.0, with drawing of G. C. 4419. 



Introduction, p. xiv. Discovery of the fifth star in trapezium 



of Orion.} / 



: Etudes d'Astronomie Stellaire. 8vo. 1847. 



: Rapport sur les obs. de Ltaponoff, sur la nebuleuse d'OWon. 



Bull, de la Class Phys-Math. de VAc. Imp. de St. Petersbourg, 



1854, vol. xii, p. 316. M. M., vol. ii, p. 45. 



: See Weisse. 



Student, The : Vol. i, pp. 113, 454, ii, p. 424. 



Swedenborg : Principia, Clissold's Ed'n, 2 vols., 8°, 1845, vol. ii, 

 part iii, pp. 258-270. [Nebular hypothesis proposed in 1734.] 

 [A copy of this work, 1st edition, 1734, was in the hands of 

 Buffon, (see Translator's Introduction, p. lxxxiv,) and the 

 resemblances and differences of the two theories are worth atten- 

 tention.] 



