NEBULAE, CLUSTERS, ETC. 19 



Herschel, W. : C. G. H. Obs'ns, p. 128. [Catalogue of 8 nebulae discov- 

 ered by him and not elsewhere published.] 



: Mem. R. A. S. i, p. 167. Observations of M. 20=G. C. 4355. 



: B. J'., 1787, p. 213. [Letter to Bode, describing the contents of 



his memoir " On the Construction of the Heavens." 1785 ] 



: Endcckung [einiger] Nebelflecken, etc. B. J., 1788, p. 238. 



[Translation from "On the Construction of the Heavens." 

 1785.] 



: Verz. von 1,000 neuen Nebelflecken. B. J., 1791, p. 157. 



: Verz. von 1,000 neuen JSTebelfiecken. B. J., 1794, p. 151. 



: UeberdieAnordnung des Weltgebaudes, [translated by Fischer.] 



B. J., 1794, pp. 213 and 226. 



: B. J., 1795, p. 65. 



: Ueber die eigentlichen Nebelsterne. B. J., 1801, p. 128, [trans- 

 lation from P. T., 1791.] 



: On the power of penetrating into space by telescopes, [translated 



by Ideler.] B. J., 1804, p. 231. 



: Ueber den Nebelfieck H. i. 7, etc. B. J"., 1805, p. 211. [Correc- 

 tion of an error in its place.] 



: Ueber den Bau des Himmels, [translated by Ideler.] B. J., 



1807, p. 113. 



: Verz. von 500 neuen Nebelflecken. B. J., 1807, p. 129. 



: Ast. observations relating to the siderial part of the Heavens and 



its connection with the nebulous part, [translated by Brandes.] 



B. J., 1818, p. 97. 

 : Einige merkwiirdigenStellen der Milchstrasse. B. J. , 1821, p. 149. 



Abstracts of Sir William Herschel's Memoirs in the Philosophical 



Transactions. 



A.D. Vol. p. 



1784 74 437 Account of some observations tending to investigate the Con- 

 struction of the Heavens. 



438 Resolution of the milky way. 



439 Number of stars visible in field of the 20-foot telescope. 



440 Examination of Messier's nebulaa. 



442 Arrangement of nebulaa and clusters in strata, sometimes 



of great length. 



443 Sun near the centre of the milky way. 



445 Star gauging defined. 



446 Table of results of star gauging from 15 h 10™ to lC h 37"" 



11. A. and from 92° to 94° N. P. D., and ll h lG m to 14» 

 30 m and 78° to 80° N. P. D. 



