Notices of New Books. 4933 



Manual for English Students, and am, therefore, responsible for the 

 contents of them, with the exception of the list of chemical re-agents 

 in Chapter III., which is to be found in the original work. Besides 

 the addition of the above four chapters, I have been furnished by 

 Dr. Schacht with a quantity of new matter in manuscript, being the 

 result of his investigations since 1852, and this new matter has been 

 incorporated in the text ; the present edition is, therefore, considerably 

 in advance of the original work. At the suggestion of Dr. Schacht, 

 I have added the Chapters IX., X. and XI., which contain an in- 

 teresting account of the embryogeny of the Coniferae, and are a 

 translation of a portion of a work published by him in the course of 

 last summer, entitled ' Beitrage zur Anatomie und Physiologie der 

 Gewachse.' Chapters VII. and VIII. of the first edition, which 

 related to drawing and to the preservation of objects, have been 

 omitted ; but the student will find what is necessary upon these 

 points, under the head of * Delineating Apparatus,' in Chapter III., 

 and in Chapter IV., which treats of the preservation of specimens." 



It will be observed that several chapters are now introduced which 

 occupy an analogous position as regards the microscope to that 

 existing between the Exhibition at Paris and the locomotive which 

 drew us there : the microscope and the locomotive are the means, 

 the structure of Coniferae and the Exhibition are the ends. Notwith- 

 standing this, we like the introduction of a scientific subject into a work 

 of this kind ; we commend every attempt to give a right direction to the 

 microscopic mind, which is but too apt to degenerate into the mere 

 curiosity-shop. 



' A Handbook to the Marine Aquarium ; containing Practical 

 Instructions for Constructing, Stocking and Maintaining a 

 Tank, and for collecting Plants and Animals.'' By Philip 

 PIenry Gosse, A.L.S. London: Van Voorst. J 855. l2ino, 48 pp. 

 letter-press : price 2s. 6d. 



This little book is sufficiently explained by the preceding very com- 

 prehensive title and the following brief and explanatory preface : — 



" The increasing popularity of the ' Marine Aquarium 1 demands a 

 Handbook of Practical Instructions for establishing and maintaining 

 it, and I am probably the most proper person to write such a book. 

 Perhaps it might have been sufficient to refer inquirers to my volume 

 on the subject; but the price of that work, arising mainly from the 

 costliness of its illustrations, puts it beyond the power of many persons, 



