FIRST PERIOD. 23 



Anthony and Bernard de Jussieu , and the sacri- 

 fices they unceasingly made to procure manure , 

 ustensils, and other necessary objects, was gradu- 

 ally falling to decay. Chirac was displeased at 

 their zeal, and Bernard de Jussieu who, besides 

 succeeding Vaillant in 1722 as subdemonstrator, 

 was also charged with the care of the collec- 

 tion of drugs, to which the name of Cabinet 

 of natural history now began to be given, was 

 deprived of that place. Aubriet , guided by his 

 own choice and the orders of the intendant, de- 

 lineated chiefly such medicinal plants as were 

 already well known. 



The lectures in anatomy and chemistry met 

 with fewer obstacles , either because they de- 

 manded no expenditure , or because Chirac took a 

 greater interest in those sciences than in the other 

 branches of natural history. The celebrated Du- 

 verney, finding himself too weak to continue 

 his lectures , devolved his duties upon Winslow. 

 Among his able assistants must be reckoned his 

 brother, Peter Duverney, and his nephew, James- 

 Francis-Maria Duverney, for whom the place of 

 demonstrator was afterwards created , and who 

 was the master of Daubenton. Duverney died in 

 17.30, in the eighty second year of his age , and 

 the fifty first of his professorship. Hunaud, a pupil 

 of Winslow who united to much knowledge 



