General Index to the Proceedings 



OF THE 



American Pliilosopliical Society 



Volumes 1-50 (1838-1911) 



In press and will be issued early in 191 2. 



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New Series, Vol. XXII, 



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One hundred and seventy-five Parabolic Orbits and other Results 



deduced from over 6200 Meteors. 



By Charles P. Olivier 



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