2 



Instruction in Practical Chemistry, Mineralogy and 



Geology. 



The subscriber has opened a New Laboratory for giving in- 

 struction in Practical Chemistry, Mineralogy and Geology, ac- 

 cording to the method which he has pursued successfully during 

 the past thirteen years in this city. 



The various applications of Chemistry to Manufactures, Agri- 

 culture, Medicine and Pharmacy, will receive special attention. 

 Analyses of Ores, Minerals, Soils, Waters, Vegetable substances, 

 and the productions of Art, will be carefully executed. Where 

 it is practicable, researches will be instituted and opinions given 

 on all chemical questions. % 



A commodious and well furnished Laboratory, a large and se- 

 lect Library of scientific and practical works in the English, Ger- 

 man and French languages, together with mineral, geological 

 and technical collections, offer every facility to the student. 



Refer to Dr. Robert Hare, Prof. J. F. Fraser, University of 

 Pennsylvania. — Dr. R. M. Patterson, Prof. R. S. McCulloch, 

 U. S. Mint. — Dr. Franklin Bache, Jefferson Medical College ; 

 and to numerous students in Philadelphia and various parts of 

 the United States. 



Apply to Wm. Hamilton, Actuary of the Franklin Institute, or 

 to the subscriber, JAS. C. BOOTH, 



At the Laboratory, 217 Arch st, above Sixth, in the Areh st. Hall. 

 Philadelphia, May 1 ? 1848. 



FUNGI AMERICANI EXSICCATL 



Botanists wishing specimens of American Fungi, can obtain 



(of not less than ten Decades each) 



Hill 



March. 1348. 



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