5G WALLICIIj ON MARINE ANIMAL LIFE. 



ment and execution of the book, our verdict would be equally 

 satisfactory, although some space, perhaps, might have been 

 saved by the omission from the ^^ second part'^ of many par- 

 ticulars concerning different groups which either are or might 

 have been embraced in tlie first part, or General History. 



The additional illustrations, filling twenty-one ncAV plates, 

 appear to have been well selected, and equally well executed. 



Without any special reference to the present work, which, 

 it must be confessed, is sufficiently bulky already, we would 

 remark upon the strange circumstance, that in most Avorks 

 devoted to microscopic objects, scarcely any notice is taken 

 of one of the most numerous, varied, and beautiful class of 

 microscopic creatures — viz., the Polyzoa. Not only are the 

 beauty and variety of form presented in these animals as great 

 as in any others of those Avhich more commonly come under 

 the observation of the amateur microscopist, but in a scientific, 

 and more particularly in a geological point of view, their 

 study is fully as important and interesting as is that of the 

 Diatomacece and Foraminifera. We hope therefore, in time, 

 to see these brought more conspicuously under popular notice 

 in works expressly devoted to the entertainment and instruc- 

 tion of MICROSCOPISTS. 



Notes on the presence of Animal Life at vast depths in 

 the Sea, ivith Observations on the Nature of the Sea- 

 bed as bea7'ing on Submarine Telegraphs. By Gr. C. 

 Wallich, M.D., &c. 



Dr. Wallich has just returned from an arduous under- 

 taking. At a very short notice, animated by the ardent zeal 

 by which he is distinguished, he started as naturalist on 

 board the Bulldog, commanded by Sir L. M'Clintock, and 

 employed in the survey of a proposed telegraphic route to 

 North America. The first-fruits of this expedition, in anti- 

 cipation, doubtless, of a further and more detailed account of 

 his observations, have been printed by Dr. Wallich, under the 

 above title ; and a very interesting communication it is. It 

 is scarcely too much to say, that Dr. Wallich's observations, 

 on this voyage, will have the result of considerably modifying 

 the views of naturalists, as to the necessary limits placed by 

 depth in the ocean to the existence of animal life. The 



