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IN
GRATEFUL APPRECIATION
OF HIS KINDLY AND
HELPFUL INTEREST
THIS BOOK IS
DEDICATED TO
SAMUEL L. BOOTHROYD
PROFESSOR IN CHARGE OF
THE FUERTES OBSERVATORY
CORNELL UNIVERSITY
ITHACA, N. Y.
IN
GRATEFUL APPRECIATION
OF HIS KINDLY AND
HELPFUL INTEREST
THIS BOOK IS
DEDICATED TO
SAMUEL L. BOOTHROYD
PROFESSOR IN CHARGE OF
THE FUERTES OBSERVATORY
CORNELL UNIVERSITY
ITHACA, N. Y.