220 Mr . Herschel on the 
foregoing part of this paper, is perfedtly confident with facts, 
and Teems to be confirmed and eftablifhed by a feries of obfer- 
vatioias. It will appear, that many hundreds of nebulas of the 
fir ft and fecond forms are actually to be feen in the heavens, 
and their places will hereafter be pointed out. Many of the 
third farm will be defcribed, and inftances of the fourth re- 
lated. A few of the cavities mentioned in the fifth will be 
particularifed, though many more have already been obferved ; 
To that, upon the whole, I believe, it will be found, that the 
foregoing theoretical view, with all its confequential appear- 
ances, as feen by an eye inclofed in one of the nebulae, is no 
other than a drawing from nature, wherein the features of the 
original have been clofely copied ; and 1 hope the refemblance 
will not be called a bad one, when it fhall be confidered how 
very limited muft be the pencil of an inhabitant of fo fmall 
and retired a portion of an indefinite fyftem in attempting the 
pidture of fo unbounded an extent. 
But to proceed to particulars : I fhall begin by giving the 
following table of gages that have been taken. In the firft 
column is the right afcenfion, and in the fecond the north 
polar diftance, both reduced to the time of Flamsteed’s 
Catalogue. In the third are the contents of the heavens, being 
the refult of the gages. The fourth fhews from how many 
fields of view the gages were deduced, which have been ten or 
more where the number of the ftars was not very confiderable ; 
but, as it would have taken too much time, in high numbers, 
to count fo many fields, the gages are generally fingle. Where 
the ftars happened to be uncommonly crouded, no more than 
half a field was counted, and even fometimes only a quadrant ; 
but then it was always done with the precaution of fixing on. 
fome row of ftars that would point out the divifion of the field, 
fo 
