6 Observations of Nebule and Clusters of Stars. 
ABBREVIATIONS—continued. 
susp. suspected (or I suspect.) x a double star. 
stell. stellar. A triangle, forms a triangle with. 
S. small, @ globular cluster. 
Schj. Schjellerup. O planetary nebula. 
v. very. st.9... stars from the 9th magn. and 
vv. an intensive of v. downwards. 
var. variable. st.9... 13. stars from the 9th down to the 
a a star. 13th magn. 
* 10 m, a star of 10th magnitude. 
In the first column on each page are given the numbers of the objects in Sir John 
Herschel’s ‘General Catalogue” (Phil. Trans. 1864). Numbers from 5080 and 
upwards refer to Mr. Dreyer’s “Supplement to Sir John Herschel’s General 
Catalogue of Nebulze and Clusters of Stars” (Transactions Royal Irish Academy 
vol. xxvi., 1878.) 
The second column contains references to Sir J. Herschel’s Slough and Cape 
Observations, as well as to Sir W. Herschel’s classes and numbers. Where an 
object is found both in the Slough Catalogue and in the Cape Observations, only 
the former has generally been referred to in order to save space. 
The number of times we find it recorded that an object has been examined is in- 
dicated by roman figures, and the word “obs.” in round brackets, e.g. (IX. obs.), 
means that the object has been examined nine times. 
Except where otherwise stated, all observations have been made with the six- 
foot reflector. 
