1820.] Scientific Intelligence. 67 



and observations of this skilful cultivator to be published, in 

 order to communicate them to the provincial administrations, 

 and the several agricultural societies. By this means the coun- 

 try gentlemen will speedily be able to see them, and will no 

 doubt find in them several ideas which will be useful for the 

 improvement of their estates. 



M. Yvart has also communicated several interesting details 

 concerning the agricultural statistics of England, through the 

 medium of giving to the Academy an account of a work on 

 Derbyshire, which the author, Mr.Farey, had addressed to him. 



STATISTICS. 



M. Moreau de Jonnes has given a memoir on the population 

 of the French West Indian islands, in which he appreciates the 

 causes and extent of the annual augmentation or decrease of 

 each of the classes composing that population. 



From official data, he estimates the mortality of the white 

 Creoles, and of the free mulattoes, at four per cent, and that of 

 the native black slaves at only three per cent. ; but in regard to 

 new comers, the case is quite different. The EngUsh troops 

 lost 21 men in every 100, and the French, 33 — a difference 

 which the author attributes to the superior disciphne of the for- 

 mer. The black troops raised in Africa by the English, and 

 transported to the West Indies, lose only in the proportion of 

 three and a half per cent. ; but the slaves carried over lose as 

 far as 17-i — a mortality, however, which is even then inferior to 

 that of the Europeans. 



The reproduction of the whites is three in 100, and that of the 

 mulattoes four ; which arises from the numerous cohabitations 

 of the whites with negresses and mulatto women ; but among 

 the slaves there is born at Martinique only two infants from 100 

 persons ; of course, this class diminishes every year at the rate 

 of one per cent. The diminution of this class at Grenada is, 

 according to Colquhoun, double. 



The Academy judged this memoir worthy of the prize^lately 

 founded, by an anonymous person, for the encouragement of 

 statistical inquiries. 



Article VI. 



SCIENTIFIC INTELLIGENCE, AND NOTICES OF SUBJECTS 

 CONNECTED WITH SCIENCE 



I. Meteoric Stones. 

 The number of meteoric substances has been lately increased 

 by a very remarkable body, distinguished in Germany by the 



£ 2 



