Page 414 - 89 history of astronomy_opt

coelostats, and other convenient adjuncts,
besides the registering chronograph and nu-
merous facilities for aiding observation. On
each of these a chapter might be written;
but the most important part of the whole
outfit is the man behind the telescope, and
it is with him that a history is more espe-
cially concerned.
SPECTROSCOPE.
414