1 



THE AMERICAN ASSOCIATION FOR THE 



PROMOTION OF SCIENCE. 



Agreeable to an invitation from the Corporation of Harvard 

 University, the next meeting of this Association will be holden 

 at Cambridge, commencing on Tuesday, August the 14th. For 

 other particulars see page 145 of this volume. 



July 1,1849. 



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. Robkrt Hare, Prof. J. F. Fraser, University of 

 Pennsylvania. — Dr. R. JVI. Patterson, Prof. R. S. McCllloch, 

 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 Arch st. Hall. 

 Philadelphia, May 1, 1848. 



