A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope (1912)
Murphy, Edgar Gardner, 1869-1913 · New York, London, G.P. Putnam's sons · leaf 80
tended as a formal design, but merely as the general sug-gestion of a method. It may be elaborated or simplified according to the size of the tele- ^be Sun 65 scope and the resources of the observer. The square G H is merely a cardboard shieldslipped over the telescope to prevent the direct rays of…
Astronomy
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