22 



Herman Schultz, 



242. * 2. 4 (12) = nebula, on an average 2' to 4' in diameter, of the faintest 

 of class II (W. H.); irregularly round; strongly condensed; 

 with a central star of 12 th magn.; light not equable. 

 433. *.0 (11.12) = nebula on an average %' to 1' in diameter; middle-bright; 



a little elongated; with a central star 11.12 magn. — re- 

 specting condensation and resolubility nothing remarked. 

 The description of a nebula ought in all cases also to indicate to which 

 of Sir J. Herschel's three classes it belongs, and as, in observations such 

 as the present, objects of the third class do not occur, the simplest course 

 appears to be, only to indicate the class, when the object belongs to the 

 second class, it being understood, that, where no class is mentioned, the 

 nebula is of the first class. In the few here occurring objects of the second 

 class I have thought it best, in so summary descriptions as the present, 

 simply to state the brightness of the stars within them observed. 



The contents of the different columns of the following tables may now 

 summarily be indicated, as follows. 



Col. 1: names of the observed objects, in which the nebulae are indicated 

 by Avell known signatures (note II — list of abbreviations em- 

 ployed); and faint stars by means of letters in such a manner, 

 that for instance hl3l(*a) signifies a star in the nebulosity it- 

 self, but * a(h210) a neighbouring star or satellite. The few 

 nebulae occasionally found and occurring in no catalogue are de- 

 signated as Novas. The comparison-stars, that were micrometri- 

 cally determined , are designated by their current numbers in the 

 star-catalogue below. 



Col. 2: numbers of the nights of observation (note III). 



Col. 3: the immediate means of the observed differences of right ascen- 

 sion in the sense: nebula — star. The numbers in parentheses indi- 

 cate the number of the single passages observed. The few Au% 

 calculated from observed angles of position, are marked with f. 



Col. 4: the immediate means of the observed differences of declination (in 

 the sense: nebula — star) expressed in scale-divisions. The numbers 

 in parentheses indicate the numbers of the single measures. The 

 micro metrical numbers obtained with micr.I (up to night 215) and 

 corresponding to the positions of the screw above the centre of 

 the micrometer are, as previously the coincidences of the same 

 species, always marked with an asterisk. 



The few micrometrical numbers, which correspond to measure- 

 ments of distances, are designated with f. In the few cases, in 



