D. Appleton d: Co., New York, have now ready, 



A NEW 



CLASS-BOOK OF CHEMISTRY, 



IN WHICH 



THE LATEST FACTS AND PRINCIPLES OF THE SCIENCE ARE 



EXPLAINED AND APPLIED TO THE ARTS OF LIFE 



AND THE PHENOMENA OF NATURE. 



A NEW EDITION, 



ENTIBELY BEWBITTEN AND MUCH ENLABGED. 



WITH 



nb m Draftings. 



BY EDWARD L. YOUMANB, M.D. 



12mo. 460 pages. 



The special attention of Educators is solicited to this work, on the fol- 

 lowing grounds : 



I. It brings up the science to the present date, incorporating the new discov- 

 eries, the corrected views and more comprehensive principles which have resulted 

 from recent inquiry. Among these may be mentioned the discoveries in Spectrum 

 Analysis, the doctrines of the Conservation and Correlation of Forces, the researches 

 of Berthelot on the Artificial Production of Organic Substances, the interesting re- 

 searches of Graham on the Crystalloid and Colloid condition of matter, with many 

 other results of recent investigation not found in contemporary text-books. 



II. Avoiding excess of technicalities, it presents the subject in a lucid, forcible, 

 and attractive style. 



III. It is profusely illustrated with cuts of objects, apparatus, and experiments, 

 \vhic-h enable the student to pursue the subject alone or in schools without ap- 

 paratus. 



IV. Directions for experimental operations are much condensed, and descrip- 

 tions of unimportant chemical substances are made very brief, or altogether omit- 

 ted, thus obtaining space to treat with unusual fulness the " chemistry of common 

 Hie," and the later revelations of this beautiful science. 



V. It presents just such a view of the leading principles and more important 

 facts of the science as is demanded for the purposes of general education. 



VI. The work is arranged upon a natural method, the topics being so presented 

 as to unfold the true order of Nature's activities. Part 1 treats of the natural 

 forces by which matter is transformed. Part II, of the application of these forces 

 to the lower or mineral world. Part III, of the organic kingdom, which rises out 

 of the preceding ; while Part IV, or Physiological Chemistry, completes the scheme 

 in the world of life. 



VII. It presents the science not only as a branch but as a means of education 

 a valuable instrument of intellectual culture and discipline. 



VIII. It gives a clear exposition of the origin and nature of scientific knowl- 

 edge and the value of scientific studies for purposes of education. 



-4 Specimen Copy for examination will be sent, post paid, on 

 receipt of 62 cents. 



