308 Notices respecting Neiv Books. 



agreeably to which, beings, when observed, are arranged in their 

 proper places. 



The first mode cannot mislead us; but it is applicable only to 

 those beings of which we have a perfect knowledge : the second 

 is more generally practised, but must be allowed to be subject 

 to error. When the bases that have been adopted remain con- 

 sistent with the combinations which observation discovers, and 

 when the same foundations are again pointed out by the results 

 deduced from observation, the two means are then in unison, and 

 we may be certain that the method is good. 



In systematizing the anatomy of animals, science is most deeply 

 indebted to the learned, acute, and indefatigable Cuvier, who has 

 contributed more than all others (save Hunter) to our accurate 

 knowledge of the characters on which the classes are founded. 



The whole animal kingdom is by Cuvier divided into four 

 great types : Vertelrosa, Mollusca,Ammlata,&nARadiata. The 

 animals which come under the observations of the author of the 

 present work belong to the type Annulosa, which are divided 

 into five classes : Crustacea, Arachmidea, Acari, Myriapoda, 

 and Insecla. 



Mr. S. has under each of these heads given a review of the sci- 

 ence as particularly connected with it, added to each genus its 

 various synonyms, and particularly pointed out the species which 

 serve as the types under the modern system. The characters on 

 which the genera are founded, appear to us very simple and na- 

 tural, and are rendered perfectly intelligible by the copious ex- 

 planation which Mr. S. annexes of the terms used in Entomology. 



The author gives towards the conclusion of his work an Ento- 

 mologist's Calendar for each month of the year, pointing out 

 the particular seasons and places where certain insects are to be 

 found from January to December. Persons who reside at a 

 distance from the metropolis must derive great advantage from 

 this calendar, as, by carefully examining such places as are re- 

 ferred to in the calendar, they will not only meet with the species 

 enumerated, but are likely to capture many new insects which 

 have not yet found a place in the hitherto neglected Entomology 

 of Britain. 



The work is cc ncluded by an explanation of the plates, which 

 contain very beautifully delineated figures of between 200 and 

 300 insects. 



We need scarcely add our opinion that, on the whole, the work 

 is one which does much honour to the industry and science of 

 Mr. Samouelle, and will repay in knowledge much more than 

 it can possibly receive from the necessarily limited sphere of sci- 

 entific patronage. 



A portion 



