The book of stars; being a simple explanation of the stars and their uses to boy life, written to conform to the tests of the Boy scouts (1915)
Collins, A. Frederick (Archie Frederick), 1869- · New York, D. Appleton and company · leaf 63
Fig. 47.—Brass Semi-Circle with Shadow Wire. … Fig. 48.—Sundial Complete.41 THE SUN, BRIGHTEST OF THE STARS 45 the proper angle. The board should be about 12 inches squareand 1 inch thick. Since the shadow of the wire made by the sunlight will fallon XII at noon, it will be plain that the shadow of the wire fall-ing on the numbers on one side…
Astronomy · Stars
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
