A 
JOUJRNAJL 
OP 
NATURAL PlirLOSOPHY, CHEMISTRY, 
AND 
THE ARTS. 
VOL. XXXVI. 
ARTICLE I. 
Jddilional hints and remarks respecting the Equatorial Telescope, 
and on the visibility of stars in the day-time. In a Letter 
from Mr. T. Dick. 
To n^illiam Nicholson, Esq. 
SIR, 
T he equatorial instrument was contrived, about the middle r e 
‘ Invention of 
of the last century, by Mr. T, Short, F. R. S. an ingenious tlie equatoriaL 
i optician, and improver of the reflecting telescope j at least, he 
I is generally allowed to have been the first who adapted a teles- 
icope to that machinery. Mr. G. Graham, F, R. S. had indeed 
{previously invented an instrument on a similar principle, which 
{goes by the name of the astronomical or equatorial sector j but 
iits use was limited to finding the difference in right ascension 
«md declination between two objects, the difference of which 
Appendix. Vol. XXXVI, — No. 1/0, Cc is 
