LATELY PUBLISHED BY THE SAME AUTHOR. 



A MONOGRAPH 



OF THE 



BRITISH GRAPTOLITIDJ1, 



8vo, with Engravings. 5s. 



" No one could be better qualified than Dr Nicholson to write a monograph 

 upon Graptolites, since he has himself discovered and named many new 

 species, and has ascertained their presence in various new localities. . . . 

 The work is excellently illustrated, having at least one and often several 

 drawings of each genus, and there is a good historical introduction."- - 

 Lancet. 



A MANUAL OF ZOOLOG-Y, 



FOR THE USE OF STUDENTS. 



WITH A GENERAL INTRODUCTION ON THE PRINCIPLES OF ZOOLOGY. 



Second Edition. Crown 8vo, pp. 674, with 



243 Engravings on Wood. 12s. 6d. 



" The advent of a new and important text-book of a science is an event 

 which is of the deepest interest, not merely to teachers and students of 

 anatomy, but to the general reading public. For the progress of a science 

 towards exactitude may very well be measured by the value of the manuals 

 published at successive periods. Dr Nicholson's Manual has this advantage, 

 that it is preceded by a general introduction on the principles of zoology. 

 This portion of the work is of the deepest possible interest, inasmuch as it 

 brings up the present state of our knowledge of zoology to the very latest 

 period. We fail to recognise in any previous zoological author the peculiar 

 judicial art, which Dr Nicholson exhibits, of showing all sides of the ques- 

 tion, while apparently in no case obtruding his own individual opinions. 

 This naturally places the present work on a far higher level than that pos- 

 sessed by its predecessors. . . . It is the best manual of zoology yet 

 published, not merely in England but m Europe." From the Pall Mall 

 Gazette, July 20, 1871. 



"A work which in point of accuracy far surpasses most of the manuals 

 which of late years have issued from the press."- Popular Science Review. 



"The best handbook for students that we at present possess." West- 

 minster Jtevieiv. 



"The best handbook on the subject.'' Quarterly Journal of Science. 

 "Dr Nicholson has succeeded well in his object of producing a useful 

 handbook for students of zoology." Annals of Natural History. 



