BRITISH ZOOLOGISTS. 189 



Nothing is, however, here possible beyond the mention of 

 some of the leading works which appeared at this time. 

 One of the best known and most widely used of these is 

 the 'Introduction to the Study of Entomology,' the first 

 edition of which appeared in 1828, the authors being the 

 Rev. William Kirby and Mr William Spence, both distin- 

 guished specialists in the department of entomology. 

 Another famous work is the * Introduction to the Modern 

 Classification of Insects,' by Professor J. O. Westwood. 

 This appeared in 1839, and being of a more technical 

 character than Kirby and Spence's * Introduction,' has 

 become one of the standard works of the entomological 

 specialist. 



As regards purely British entomology, the most famous 

 work of this time is Curtis's 'British Entomology' ( 1824- 

 1840). This beautiful treatise, in sixteen octavo volumes, 

 is illustrated by admirably drawn coloured figures of the 

 insects and of the plants upon which they feed; and is 

 still one of the standard works on the subject with which 

 it deals. Another work of the same character, but only 

 dealing with certain groups, is the ' Illustrations of British 

 Entomology,' by James F. Stephens. Mention must also 

 be made here of the admirable anatomical memoirs dealing 

 with Insects and Myriapods (centipedes and their allies), 

 by Newport, who likewise contributed the article ' Insecta ' 

 to Todd and Bowman's 'Cyclopaedia of Anatomy and 

 Physiology (1839). 



Lastly, as regards the lower Invertebrate animals, and 

 more particularly the Zoophytes ( Ccelenterate animals), 

 there are only two names belonging to this period which 

 need special mention. One of these is that of Dr George 



