XXVI PREFACE TO THE SECOND EDITION. 



the Zoological Illustrations of M. Swainson, and in the Zoolo- 

 gical Journal published by able naturalists in London. The 

 Journals of the Lyceum of New York, and of the Academy of 

 Natural Sciences of Philadelphia, are not less precious; but in 

 proportion as the taste for natural history becomes extended, 

 and the more numerous the countries in which it is cultivated, 

 the number of its acquisitions increase in geometrical pro- 

 gression, and it becomes more and more difficult to collect all 

 the writings of naturalists, and to complete the table of their 

 results 5 I rely therefore on the indulgence of those whose ob- 

 servations may have escaped me, or whose works I may not 

 have sufficiently studied. 



My celebrated friend and colleague M. Latreille, as in the 

 first edition, having consented to take upon himself the im- 

 portant and difficult subject of the Crustacea, Arachnides and 

 Insects, will himself point out the path he has pursued ; so 

 that on these points I need say nothing more here. 



Jar din du JRoi, October 1828. 



