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1Review)6* 



Inorganic Chemistry. By Edward Frankland, Ph.D., 

 D.C.L., LL.D., etc., Professor of Chemistry in the Normal School of Science, 

 and Francis R. Japp, M.A., Ph.D., F.I.C., Assistant-Professor of Chemistry 

 in the Normal School of Science ; pp. XIX. — 805. (London : J. and A. 

 Churchill, ii, New Burlington Street.) 



This is a work which should be carefully read by every thoughtful chemical 

 student. The first twenty chapters are entirely devoted to theoretical chemis- 

 try, and in them we have an excellent resume of modern chemical theories, 

 embracing well-written chapters on Chemical Nomenclature, the Atomic 

 Theory, the Laws of Boyle, Charles, Gay-Lussac, and Avogadro, etc.. 

 Methods of Determining and Controlling Molecular Weights, the " Periodic 

 Law," General Classification and Thermo-Chemistry, together with others on 

 the more purely physical side of the science. 



Of course, the system of notation adopted in the work is that invented by 

 Dr. Frankland, and used by him for many years past in the Normal School of 

 Science. Dr. Frankland, as a pioneer, in attempting to formulate a concise 

 theory of the constitution of chemical compounds, has done good service to 

 chemistry ; yet this system, like the work of most pioneers, we anticipate, will 

 have to give way to a truer expression of fact. 



In page 69 the authors admit the existence of another mode of combination, 

 not the " atomic," which they term the Molecular, and it is especially in this 

 direction we consider that the theory and notation advocated in this work 

 requires much further development. 



Every teacher carefully points out to his pupils the distinction between fact 

 and theory, and till w^e know infinitely more than at present of the real nature 

 of the forces acting in the first place between Molecules containing similar, and 

 in the second between those containing dis-similar atoms, a constitutional 

 formula of whatever kind can only be accepted in so far as it expresses some 

 particular mode of synthesis or of decomposition. The descriptive and 

 technical portion of the work is lucidly written ; descriptions of the more 

 important substances being in bold type, whist those of more rare or less 

 important substances are in smaller type. The information given in the book 

 appears to be brought well up to date. The work is illustrated with two 

 plates and 50 or more engravings. 



Lessons in Chemistry. By W. H. Greene, M.D., Professor 



of Chemistry in the Philadelphia High School ; pp. 357. (Published by J. B. 

 Lippencott and Co., Philadelphia, and 15, Russell Street, Covent Garden.) 



This is a work on Elementary Chemistry, containing a well-arranged course 

 adapted for use in schools where this science is taught as a part of the regular 

 course, not with the intention of making trained chemists of the pupils, but 

 with the object of increasing their powers of observation, and giving them 

 some insight into some of the more important natural phenomena. 



A very good feature in the arrangement of the work is the study of some of 

 the more important carbon compounds in their natural connection with that 

 element itself, thus forming a good preliminary basis for the study of organic 

 chemistry. The illustrations are good. 



The Elements of Chemistry, Inorganic and Organic. By 

 Sidney A. Norton, Ph.D., LL.D., Professor in the Ohio State University; 

 pp. 504. (New York : Van Antwerp, Bragg, and Co. 1884.) 



