f 
* 
2^ OyT fjj e Solar, or 
F. is another fhort Brafs Tube, made to 
Hide over the above-defcribed Tube E. To 
the End hereof the Microfcope muff be 
fere wed when we come to ufe it. 
5. a convex Lens, whofe Focus is about 
twelve Inches, defigned to colled; the Sun’s 
Rays, and throw them more ftrongly upon 
the Objed. 
G. a Looking-glafs of an oblong Figure, 
fet in a wooden Frame, fade tied by Hinges 
to the circular Piece of Wood B, and. turn¬ 
ing about therewith, by Means of the above- 
mentioned Cat-gut. 
H. a jointed Wire, partly Brafs and partly 
Iron : the Brafs Part whereof, which is fiat, 
6, being fattened to the Looking-glafs, and 
the Ron Part, which is round, y, palling 
through the wooden Frame, enable the 
Obferver (by putting it backwards or for¬ 
wards) to elevate or decline the Glafs ac¬ 
cording to the Sun’s Altitude. 
I-, a Brafs Ring at the End of the jointed 
Wire., whereby to manage it with the great¬ 
er Eafe. 
N. B. The Extremities of the Cat-gut 
are faftened to a Brafs Pin, by turning of. 
which it may be braced up, if at any time it 
becomes too flack. This Pin lying be¬ 
hind, could not be (hewn in the Pidure. 
When this Microfcope is employed, the 
Room mud be rendered as dark as poflible 
for on the Darknpfs of the Room, and 
‘ * 6 ■’ the 
