188 Mr. Wotraston’s Method of defcribing the relative 
other which fhall be efteemed more convenient. Every one, 
indeed, muft ufe fuch inftraments as he can procure: but affi- 
duity can do more with indifferent ones, than will ever be ac- 
_ complifhed with the very beft without it. Whatever references 
_ are made for one’s own convenience, when a map and catalogue 
are give: to the public ftock, the old letters and numbers 
ihould be retained as far as they go: though yet notice fhould 
be taken, where the magnitudes of the ftars at prefent do not 
appear to correfpond with the order in which they have been 
laid down. | | 
To render this more’ complete, it were to be wifhed, that 
each fhould give in a copy of his original obfervations, with an 
account of the inftruments he ufed; fince they ought to be 
preferved as data from whence his deduétions were made,, 
which may then be re-examined at any future time. Yet muft 
it be defired, that no one would truft himfelf without carry- 
ing on his calculations as faft as the obfervations are made 
they will otherwife multiply upon his hands till the labour will 
difhearten him from attempting it at all. A heap of crude, 
undigefted obfervations would be an unwelcome prefent to the 
public. 
Having thus ftated this Propofal, I fhall leave it to be pro- 
ceeded upon, or not, as fhall be feen proper: And will now 
only fubjoin a Lift of fuch occafional obfervations as I have had 
opportunity of making, fince the laft which I communicated to 
this Society. Ifind, indeed, that itis much longer than I had 
apprehended: but asI perceive fome aftronomers abroad have 
referred to a few of thofe which have been honoured with a 
place in our Tranfactions, it may be as well to follow it up. 
An obfervation retained among one’s own private papers I hold 
to be of little ufe. 
One 
