D. Appleton <& Co.'s Mediccd Publications. 13 



In America it has already met with general and unqualified approval ; and 

 in Europe is now being welcomed as one of the best and most important addi- 

 tions to modern pharmaceutical literature. To give a better idea of the real 

 merits and popularity of the book, we would call attention to the following : 



"A work of this kind has long been needed, and for this reason alone this volume would be 

 heartily welcomed, even if it had been less complete than it is. ... This brief outline of the 

 contents of this valuable work is scarcely sufficient to convey a correct idea of all the informa- 

 tion presented in it. The descriptions and directions are clear and precise, and we feel sure 

 that those whose vocation requires the examination of medicinal chemicals will find this valua- 

 ble work what the author designed it to be a trustworthy guide for the determination of their 

 identity and quality." American Journal of Pharmacy, 



" A work of this character has long been a desideratum, and we may now truly say that the 

 void has been well filled by this c.^ellent treatise, which will be cordially welcomed by every 

 pharmacist and by all others to whom it is especially directed. In all the departments of the 

 work Dr. Hoffmann displays extended research, and a critical familiarity with the subject, while 

 at the same time he has placed the matter before the student with system, and in a language 

 at once clear and concise. Not only is the author to be congratulated upon the excellent result 

 of his labor, but every pharmaceutist also upon this most opportune addition to the literature 

 of his art, and most valuable assistant in his daily work." The Pharmacist (Chicago). 



" In this excellent work, the author, a thorough practical pharmaceutist, eminently fitted to 

 the task, has successfully endeavored to crystallize into a single volume all that is essential to 

 form a reliable and practical guide." New York Medical Review. 



" The object for which this book has been written has been successfully accomplished ; it is 

 an eminently practical work throughout ; its style and descriptions are clear and accurate, and 

 it will prove very valuable to those who have occasion to examine drugs and chemicals." 

 Boston Medical and Surgical Journal. 



"This book has long been a desideratum, and will be well received. It treats of subjects of 

 vital importance to the physician and druggist in a clear and concise manner. We do most 

 heartily recommend this work as the best aid in the examination of medicinal chemicals." 

 Nashville Journal of Medicine and Surgery. 



"This volume is a carefully-prepared work, and well up to the existing state of both the 

 science and art of modern pharmacy. It is a book which will find its place in every medical 

 and pharmaceutical laboratory and library, and is a safe and instructive guide to medical stu- 

 dents and practitioners of medicine." American Journal of Science and Arts. 



" The appearance of this work must be regarded as very timely. That the physician and the 

 pharmaceutist may have it in their power to examine by the most approved methods the arti- 

 cles they prescribe and dispense, the author has, carefully and with a mature judgment and 

 sound discretion, collected and arranged in accessible form the most trusty tests of purity in 

 medicinal chemicals." Medical and Surgical Reporter. 



" In this volume Dr. Hoffmann has supplied a want in the literature of his profession, by 

 having gathered together the widely-scattered fragments of information relating to the exami- 

 nation of chemicals, and has arranged them into a systematic and ready hand-book of especial 

 interest and value, which certainly is entitled to a wide circulation. . . . With regard to indices, 

 the work is a model ; it contains a number of valuable tables, and is largely illustrated with ex- 

 cellent engravings, which serve to elucidate very much the descriptions of apparatus and ma- 

 nipulations. The work is issued in Messrs. Appletons 1 best style, and presents not only an at- 

 tractive appearance, but an unusual freedom from typographical defects and errors." Ameri- 

 can Chemist. 



" The reputation of the author of this book is the best guarantee of its accuracy and value. 

 Dr. Hoffmann is well known as a highly -valued contributor to scientific journals, as a popular 

 lecturer, and as an original investigator. He has himself practically applied the leading meth- 

 ods set forth in the book, and has proved most of the tests recommended by him. . . . The 

 book is a valuable addition to our pharmaceutical literature, and ought to have the effect of 

 securing a still more extended knowledge of the medicinal chemicals most in use.' 1 Journal 

 of Applied Chemistry. 



"This excellent volume carries out fully the prefatory promises, and fills a void which haa 

 heretofore existed in American pharmaceutical literature. It is not only a valuable acquisition 

 to the library of the average pharmaceutist, but also an invaluable aid to those better qualified 

 and practically familiar with the subject, and there is no doubt that this work will be regarded 

 as a standard among works on pharmacy." Prof. C. Lewis Dield, Louisville, Kentucky. 



" It is with great satisfaction that we note the appearance of this manual, especially adapted 

 to the pharmaceutical chemist and manufacturer of medicinal chemicals. The processes recom- 

 mended have been judiciously and carefully selected, and the instructions are full and trust- 

 worthy; and we hope that the circulation of this elaborate work, on both sides of the Atlantic, 

 may tend to accomplish its objects." Chemical News (London). 



