An edition of Sciothericum telescopicum, or, A new contrivance of adapting a telescope to an horizontal dial for observing the moment of time by day or night (1686)

Sciothericum telescopicum, or, A new contrivance of adapting a telescope to an horizontal dial for observing the moment of time by day or night

useful in all astronomical observations, and for regulating and adjusting curious pendulum-watches and other time-keepers, with proper tables requisite thereto

By William Molyneux