MESSRS. LONGMANS' WORKS ON MEDICINE, SURGERY, ETC. 23 



TEXT-BOOKS OF PHYSICAL CHEMISTRY, ETC. 



continued. 



ELECTED -CHEMISTEY. PAET I. GENEEAL THEOEY. 

 By R. A. LEHFELDT, D.Sc., Professor of Physics at the East London 

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ELECTED - CHEMISTEY. PAET II. APPLICATIONS TO 

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STEEEOCHEMISTEY. By A. W. STEWART, D.Sc., Carnegie Research 

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THE THEOEY OF VALENCY. By j. NEWTON FRIEND, Ph.D. 

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EELATIONS BETWEEN CHEMICAL CONSTITUTION AND 



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THEEMODYNAMICS. By F. G. DONNAN, M.A., Ph.D. Crown 8vo. 



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