BY MARY D. BARBER PUBLISHED BY PAUL ELDER & COMPANY SAN FRANCISCO Copyright, 1918 by MARY D. BARBER The Monarch Butterfly Anosia Plexippus is a familiar object in many parts of the United States, but the fact that it migrates, covering in its flights hundreds and even thousands of miles, is not generally known. This butterfly appears in immense swarms every year early in September at Bolinas, a sheltered haven on the coast of California, about ten miles north of the Golden Gate. A southe