THIRD PERIOD. II9 



to fill it, as in his lectures at the King's Garden, 

 at the school of pharmacy, and the lyceum of 

 arts, he had always preferred the exhibition of 

 useful processes to surprising and brilliant ex- 

 periments. 



At his death, in February 1804, he was suc- 

 ceeded by M. Vauquelin, who, having made 

 practical chemistry his peculiar study, was en- 

 abled to give greater scope to this important 

 part of the science : by the improvement of ana- 

 lytic chemistry and the art of essaying, by the 

 discovery of chrome and other substances, and 

 by the introduction of more scientific methods 

 into common practice, he is allowed to have 

 exerted a great and beneficial influence on our 

 manufactures. 



As early as the beginning of last century botany 

 was cultivated with success. A great number of 

 plants were assembled in the King's Garden, rich 

 herbariums had been formed, and Tournefort, 

 from the examination of all the plants then 

 known, had deduced a method, which in general 

 preserved the natural relations. The progress of 

 zoology was less rapid, not from a neglect of 

 that science, but from the want of resources. 

 Separate descriptions of animals were published, 

 curious observations were made upon insects, 

 and Linnaeus had presented in systematic order 



