JOURNAL 



I Ot THE 



cademy of Natural Sciences 



OF 



TBSLAliEiliTHlA. 



VOL. I. PART I. 



A\,4, 



i 



PHILADELPHIA: 



PRINTED FOR THE SOCIETY BY D. HEARTT, 



And sold by THOMAS DOBSON & SON, No. 41 South Second jtreet, 

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