REVIEWS. 61 



notes ; La Henriade, Voltaire ; Ingram and Trotter's Mathe- 

 matics, 6th edition ; Adventures and Traditions, Glass. 



Wanted. — PhilHp's Guide to Geology ; McCulloch on Rocks; 

 PhilHps' Geology of Yorkshire ; De la Beche's Manual of Geo- 

 logy ; Hull's Coal-Fields of Great Britain ; Woodward's Geology 

 of Norfolk ; Lonsdale's Geology of Bath ; Darwin's Naturalist's 

 Voyage ; Felton's Geology of Hastings ; The Konink's Fossil 

 Monograph ; McCoy's Fossil Monograph. — J. Smith, Monk- 

 redding, Kilwinning. 



Manuel Pratique de Crystallographie. Par G. Wyron- 

 bofF. 8vo, pp. xii. — 344. (Paris : Gauthier-Villars. 1889.) Price 12 fr. 



This book is a manuel for the determination of the forms of crystals, and 

 gives such information as will enable the ordinary student to obtain sufficient 

 practical knowledge of the subject to enable him to dispense with the aid of a 

 specialist. 



The aim of the author is to popularise the study of crystallographie calcu- 

 lation among young chemists, a subject to which he has for some length of 

 time devoted his attention. 



Letters on Landscape Photography. By H. P. Robinson. 



Svo, pp. 94. (New York : The Scoville Manufacturing Co. 1888.) Price Si-5o. 

 These letters, which were originally published in the Photographic Times^ 

 will be found of great value to those who, by their study and practice of pho- 

 tography, are enabled to produce a technically perfect negative, but who do 

 not know how to put their knowledge to pictorial use. It contains a number of 

 plates. A photographic portrait of the author forms the frontispiece. 



Pictures in Black and White ; or. Photographers Photo- 

 graphed. By Geo. Mason. Cr. Svo, pp. 188. (Glasgow : Geo. Mason and Co., 

 180 Sauchighall Street; London: Greenwood and Co., 2 York St., Covent 

 Garden.) Price is. 



Mr. George Mason — whose writings over the signature of " Mark Oute " 

 are well known — gives us here some interesting pen-portraits and narration of 

 incidents which, he tells us, are true, gathered from his own experience, with 

 just sufficient colouring to give them form. 



La Photographie Instantanee, son Application aux Arts et 

 aux Sciences. Par Le Dr. J. M. Eder. Royal 8vo, pp. xiv. — 221. (Paris: 

 Gauthier-Villars et Fils. 1888.) Price 6fr. 50c. 



This is a very exhaustive treatise on instantaneous photography, giving 

 very full details of the various forms of apparatus employed, and of the 

 methods necessary to obtain series of instantaneous photographs of such 

 objects as trotting horses, leaping, etc. The work is very fully illustrated, and 

 many of the illustrations are of great interest. 



Procedes Photographiques pour I'Application directe sur al 



Porcelaine, avec Couleurs Vitritiables de Dessins, Photographies, etc. Par E. 

 Godard. (Paris : Gauthier-Villars et Fils. 188S.) 



A short, practical treatise on the transference to porcelain, etc., of photo- 



