Page 218 - 89 history of astronomy_opt
P. 218
the sun.
[Illustration]
[3] The ruled logarithmic paper we now
use was not then to be had by going into
a stationer’s shop. Else he would have ac-
complished this in five minutes.
6. GALILEO AND THE TELESCOPE–
NOTIONS OF GRAVITY BY HORROCKS,
ETC.
218
