62 REVIEWS. 



graphic films. It does not enter into the methods of obtaining the photogra- 

 phic image, but describes the process of transferring it to the porcelain or 

 ceramic plate. 



L'Hydroquinone : Nouvelle Methode de Developpement. 

 Par George Balagny. (Paris : Gauthier-Villars et Fils. 1888.) 



The investigations of the student of organic chemistry are constantly 

 bringing under our notice compounds whose properties, as well as their excel- 

 lence, were previously unknown. These properties are the objects of much 

 interest in a great variety of ways, and it is no wonder that experimental 

 photographers are among the first to take a lively interest in these new 

 compounds. The compound to which attention is called in this little 

 hrochtire is one closely allied to pyrogallic acid, and its action as a reducing 

 agent of the silver salts is very similar, but the author claims for it greater cer- 

 tainty of action, greater rapidity, and better results ; and he points out very 

 clearly the conditions of success. 



Die Bromsilber-Gelatine Ihre Bereitung und Anwendung 

 zu Photographischen Aufnahmen zu Abdriicken und zu Vergrosserungen. Von 

 Dr. Paul E. Liesegang. 8vo, pp. 198, (Dusseldorf: Ed. Liesegang's Verlag. 

 1889.) 



In the work before us. Dr. Liesegang gives an exhaustive treatise on the 

 Gelatine-Bromide progress in Photography ; the book is illustrated with 71 

 well-executed engravings. 



Photographischer Almanack und Kalender fiir das Jahr 

 1889. (Dusseldorf: Ed. Liesegang's Verlag.) 



This little Annual of 136 pages contains a large amount of useful informa- 

 tion and practical receipts. We notice a large margin is left on the pages 

 containing receipts for notes, which will doubtless be found convenient. The 

 book contains portraits of Edward L. Wilson, and of Louis Jacques Maude 

 Daguerre. 



The Art and Practice of Silver Printing. By Capt. 

 Abneyand H. P. Robinson. i2mo, pp. viii. — 136. (London : Piper and Carter. 

 1888.) Price IS. 6d. 



This little work, now in its Second edition, goes very thoroughly into the 

 subject of which it treats, and by careful attention to the instructions laid 

 down by the authors, we feel assured the operator will be enabled to secure 

 not only beautiful, but permanent results. 



George Mason and Co.'s Photographic Guide. (Glasgow: 



G. Mason and Co., 180—186 Sauchiehall Street.) 



This work of 272 pages is composed largely of Trade Catalogue, in which 

 full directions are given for using all the various apparatus, of which there are 

 nearly 340 illustrations. There will also be found a considerable amount of 

 instruction, making the book valuable either to the Professional or Amateur. 



The Photographer's Book of Practical Formuhic. Com- 

 piled by W. D Holmes, Ph.B., and E. P. Griswold. Crown 8vo, pp. 240. 

 (New York : P. A. McGeorge. 1888.) 



The editors tell us that in compiling this work their chief aim has been not 

 so much to procure new matter, although much that is new and useful has been 

 added, as to publish in a compact form all the old formula; now in successful 

 and daily use. 



