The Art of Projecting. 



% P^anual of dBvpfrimmtation 



IN 



PHYSICS, 



Chemistry, and Natural History 



WITH THK 



PORTE LUMIERE AND MAGIC LANTERN. 



By Prof. A. E. DOLBEAR, 



tuft's college. 







ILLUSTRATED. 



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BOSTON : 



LEE & SHEPARD, PUBLISHERS. 



NEW YORK: CHARLES T. DILlInGHAM. 



1S77. 



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