PREFACE TO THE AMERICAN EDITION. 



The present edition of WOHLER'S HAND-BOOK OF 

 MINEKAL ANALYSIS is a translation of the last German 

 with some changes and additions. 



A few of the methods here described might have 

 been omitted, and newer, in some cases preferable ones, 

 given instead, but it has been thought advisable to 

 present the book in nearly the same form as the ori- 

 ginal. 



Free use has been made of the excellent translation 

 of the first edition by Dr. A. W. Hoffman, and frequent 

 reference had to the French edition by Messrs. Gran- 

 deau and Troost, from which many of the illustrations 

 of apparatus have been taken. 



The work is not intended to take the place of larger 

 and more complete works on analysis, but it is believed 

 that it will be found a convenient companion to these 

 in the laboratory. 



H. B. N. 

 TROY, N. Y., Dec. 15,1870. 



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