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NUMBER CXXXV. 

 For JULY 1809. 



COfftAINING THK FOLLOWING ENGRAVINGS: 

 I, 2, Two Plates to illustrate M, Hauy's Crystallography. 

 5. Apparatus to illustrate Mr. Davy's Bakerian Lecture. 



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THE 



11 PHILOSOPHICAL MAGAZINE 



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AGRICULTURE, MANUFACTURES, 





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