[ S59 1 
Received November 14, i 77 i'» 
LL An Account of the going of an Afro- 
nomkal Clock : By the Rev, Francis- 
Wollafton, R. S, 
:Rcad Dec. 19^^ TAVING heard Ifoften lamented,, 
that very few regiders of the going 
of clocks have been communicated to the public j, 
I take the liberty to lay before the Society fuch obfer- 
vations as I have made to afeertain mine; and (hall: 
be happy if my amufements can in, any way be of the 
leaft fcrvice to any one. 
My clock was made by Holmes.. The pendulum 
rod is of deal, to which the ball is ferewed fall ; aud- 
it is adjufted by a fmaller weight underneath. The; 
clock beats dead feconds ; and is faftened to a prin- 
cipal wail, independent of the floor*. The room 
never has a fire in it. 
The tranfit telefcope, with which I made the ob-- 
fervations, has an achromatic objedl: glafs, of only 
14 inches focal length, and magnifies about 15 times; 
its tranfverfe axis is but 12 inches long, and' it is. 
mounted on a vertical axis of 18; being defigned 
for an equal altitude inftrument likewife,.and .fo ufeF 
