Preparing for Publication, (Price to Subscribers Twenty-one Shillings,) 

 Payable on Delivery, 



A NEW AND GREATLY ENLARGED EDITION OF THE 



HISTOEY OF INFUSOEIA, LIVING AND FOSSIL, 



Illustrated by Several Hundred Ihigravings, 



BY 



ANDREW PEITCHARD, M. R. L, 

 Author of the 3Iicrosco2)ic Illustrations, ^c. 



The Author, in preparing for the tliird time a manual on the 

 subject of the Infusoria, hopes to maintaia the position ceded to him 

 on the two former occasions. In 1834, he completed A Natwal 

 History of Animalcules, which gave general satisfaction to the micros- 

 copic observer, and opened a new era on that subject in this country. 

 In 1841, the first edition of A History of Infusoria, living and fossil, 

 was published, in which the magnificent discoveries of Ehrenberg 

 were brought before the English reader, and a vast advance made to 

 our knowledge of Animalcules recorded. In the present attempt, the 

 Author hopes to exceed the work of 1841, as much as that work did 

 the volume of 1834. The niunerous important discoveries on the 

 Contiuent, and at home, will be carefully collected and digested. 



In addition to the author's own observations, those of naturalists, 

 on the animal or vegetable natiu-e of these organic bodies, wiU be 

 investigated; and the Botanist who now claims the Bacillaria, 

 ( Diatomacea) wiU here find more numerous descriptions and details of 

 structure than is to be met with in any other work extant ; whUe the 

 Zoologist and the lover of nature will, in a single volume, obtain every 

 fact of interest, connected with the structure, habits, instincts, and 

 localities of these interesting living atoms. Care will be taken to 

 present the Geologist \vith an account of the fossil species, and the 

 strata in which they abound. The various methods of collecting, 

 mounting, preserving, and of viewing Animalcules under the Micros- 

 cope, wiU be fully described. The additional matter, even when 

 condensed, will, of itself, nearly equal that of the former otlition ; 

 while the niunber of new species introduced exceed those given in 

 that work. 



Subscribers are respectfully requested to forward their names to 

 S. L. Str.\ker, 162, Fleet Street, London ; who will take charge of 

 the colouring of all copies subscribed for. 



