s 



By the same Author. 



MANUAL 



of PROTOZOA: with a General 



Introduction on the Principles of Zoology, and numerous 

 Woodcuts Fcp. 8vo. 2*. 



" npHIS first instalment of a series 



•*• of scientific manuals appro- 

 priately describes a sub-kingdom of 

 animals of the simplest organization, 

 many of which we have been accus- 

 tomed to associate with the lower 

 members of the vegetable kingdom. 

 These hitherto obscure beings are here 

 briefly but carefully treated ; and within 

 a compass of less than a hundred pages 

 a considerable amount of information 

 about them is conveyed, including the 

 more recent researches of minute and 

 scientific observers. The Spongida?, 

 for example, are clearly and concisely 



explained, and in a few para- 

 graphs the discoveries and opinions of 

 several naturalists are noticed and 

 made clear. This part promises well 

 for the whole series. Each volume will, 

 it is announced, contain a condensed 

 exposition of the department of science 

 upon which it treats,— and the subject- 

 matter of these Manuals will be so ar- 

 ranged as to render them suitable for 

 students of various degrees of profi- 

 ciency as well as for self-instruction. 

 The present, as an example, forms a 

 good text-book for a class of students." 



Athenaeum. 



V/ x** \* X> *-• *-• \*f 



\Z'\^'*W^*'X, 



London : LONGMAN, GKEEN, and CO. Paternoster Kow. 







* 





LONDON : PRINTED BY SPOTTISWOODE AND CO. NEW-STKEET SQUABE 



