64 INDEX CATALOGUE. 



D'Abbadie : Mon. Not. R. A. S., xvii, p. 245. [Porro's new star in tra- 

 pezium.] 



D' Arrest : TTndersogelse over de nebulose Stjerner, etc. 1872. 4°. 

 ["With drawing of the nebula and detailed memoir.] 



: A. N., Ivii, col. 341. 



: A. N., Ixx, col. 337. [Notice of Lefebvre's drawing.] 



Dawes : Mon. Not. R. A. S., viii, p. 31. [New star.] 



Denning : A. N., lxxx, col. 299. [Ten stars in and near trapezium.] See 

 Salter. 



De Vico : Mon. Oss. Coll. Romano, 1839, p. 31, plates i and ii. [Drawing ; 

 new stars in trapezium.] 



■ : Same, 1840-41, p. 22. [Plate by Eondoni.] 



: C. R., xiii, p. 449. [Note on Eondoni's drawing.] 



Doppelmayer : Himmels-Karten, Blatt. 2G. 



Engelmann, R. : Messungen 00 Doppelsternen, etc., p. 147. [Variability 

 of stars.] 



Faye : C. R., vol. lx, 1865, i, p. 4G8. [Eemarks on Secchi's observation 

 of the spectrum of the nebula in Orion.] 



Flaugergues: C. T., 1802, [An xi,] p. 361. [Observations.] 

 : Mon. de VInstilut, i, [An vi,] 1798, p. 10G. 



Gill: Mon. Not. R. A. S., xxvii, p. 315. [Stars within the trapezium of 



Orion.] 



Goldschmidt : A. N, lix, col. 31. 



Hahn, Von : B. J., 1797, p. 157 ; B. J., 1799, p. 235. 



Herschel, J. : Eesults of Astronomical Observations at the Cape of Good 



Hope, p. 25. ["With a plate.] 

 : Account, etc., of the nebula of Orion. Mem. R. A. S., vol. ii, p. 



487. [With plates.] 

 : Mem. R. A. S., vol. iii, p. 189. [Fifth star of the trapezium.] 



See also same vol., p. 187. 



Herschel, Capt. J. : Proc. R. S., vol. xvi, [1867-8,] pp. 417, 451. [Ob- 

 servations of spectrum.] 



