62 INDEX CATALOGUE. 



Wolf, C. : Description du groupe des Pleiades et inesures micrometriques 

 des positions, etc., C. R., 1875, July 5, vol. lxxxi, p. 29. [The 

 catalogue contains 499 stars ; also there is given an account of 

 Tempel's variable nebula.] See also Bull. Intern, de I'Obs. de 

 Paris, 1875, Nos. 223-4. 



Wolf, E. : J- B. Cysat von Luzern. Bern, 1853. [Cysat the discoverer 



of the nebula of Orion.~\ 

 : A. N., xxxviii, col. 109. [Cysat.] 



Wollastoil, P. : A specimen of a general astronomical catalogue. Lon- 

 don, 1789, folio. [Catalogues of nebulae reduced to 1790.0.] 



Wright, Thos. : [of Durham :] Theory of the Universe. London. 4° 

 1750. [Theoretical considerations on the formation of the 

 universe, etc., the milky way, etc.] See also Phil. Mag., 3d 

 series, vol. 22, p. 241. DeMorgan, and Hamburgisbhe freie 

 Urtheile, 1751, for synopses, etc., of "Wright's ideas. 



Young: Natural Philosophy, edition, 1807. ii, p. 324. 4°. [Catalogue 

 of works on nebula}.] 



Zach : Corr. Asl., xiv, 410. [On Cacciatore's new nebula.] 



Zach's : Correspondance Astronomique, vol. xiv, p. 410. 



: Monatliche Correspondenz, vol. x, p. 220. 



Zdllner : V. J. S., 1867, p. 116. [Review of Huggiks, P. T., 1868, p. 529.] 



