Ill BATE AND WESTWOOD_, ON CRUSTACEA. 



almost tlireatcned v.itli extinction. We are glad, Iiom'cvcv, 

 to find our author holding by some of the Infusoria as 

 genuine examples, and not following Agassiz in his hasty 

 annihilation of such organisms. 



Throughout the work, amongst the higher groups of or- 

 ganisms, we observe abundant evidence of the care which 

 the author has bestowed on this edition of the work. A 

 large number of new woodcuts has likewise been added ; 

 for whilst we observe, in the second edition, that the last 

 figure is marked 398, in the present edition it is 423. The 

 additional cuts, like those of the earlier work, are executed 

 ■with great care, and form some of the best illustrations of 

 anatomical structure with which avc are acquainted. In fact, 

 we feel that, in the getting-up of this beautiful book, it 

 would be unfair not to refer to the publisher, Avhose great 

 care and good taste have enabled him to place the works of 

 his authors in the most attractive and useful forms before 

 the public. We cannot for a moment suppose that a work 

 "which has already reached three editions, whilst natural 

 history teaching is advancing, will not have a demand for a 

 fourth ; and we are sure we need not remind Professor Jones 

 of the necessity of bringing the information contained in his 

 classical volume in every succeeding edition up to the very 

 edge of the time in which it is published. 



A History of British Sessile-eyed Crustacea. By C. Spence 

 Bate and J. O. Westavood. Parts I to IV. London : 

 Van Voorst. 



The commencement of this work promises to complete the 

 history of the British Crustacea. j\Ir. BelFs beautiful work 

 on the stalk-eyed forms has left nothing to be desired in this 

 department ; Avhilst Dr. Baird^s volume on the Entomostraca, 

 published by the Ray Society, is a very complete history, up 

 to the time it was published, of the more minute forms of 

 this family. ISlessrs. Bate and Westwood have now under- 

 taken to fill up the hiatus left by these tw^o works ; and from 

 the reputation of these gentlemen in the study of the families 

 they have undertaken to illustrate, there can be no doubt 

 that they will perform their task with equal ability. The 

 present parts include the Saltatorial and [Natatorial tribes of 

 the order Amphipoda. The descriptive portion of the work 

 commences with an account of the Palitrus Locustra, the 

 sand-hopper of our coasts. A minute account of the struc- 

 ture of this creature is given, as well as of the other species 

 described, and the microscope has been used for the purpose 



