aj thu Mauritius^ 13.5 



country, and that of intligo is totally abandoned. Mr. Thouin 

 also mentions the cultivation of a species of vivacious ricf, 

 propagated by cuttings, which, in fact, is the dry rice introduced 

 from Cochin China by Mr. Poivre, of which he lias reaped only 

 a few crops. Mr. Thouin asserts also, that Mr Cere had suc- 

 ceeded Mr. Aullet in the superintendence of the .garden at 

 Reduit, whereas Mr. Cure had been appointed Director of the 

 garden at Pamplemousscs. Mr. Bouton terminated his remarks 

 with some general views regarding the agriculture of the island. 



The Secretary read a communication from Capt. Longmore 

 of the Royal Staff Corps, containing a preamble, a report of 

 date 12th October 1830, and an order of General D'Entrecas- 

 tcaux, on the 20th April 1788, relative to the erection of two 

 marks in the plane of Fort Blanc, by Mr. L. Geoffroy ; and to 

 the verification and replacement of one of them, after the in- 

 terval of 52 years. These marks, placed at the distance of 901 

 loises and 2 feet, determine a base exactly in the plane of the 

 horizon, and serve to connect the Geodesic operations of the 

 astronomer LaCaille in 1753, with those which Mr. L. Geoffroy 

 had occasion to carry on afterwards. 



Mr. Cameron, correspondent at Madagascar, transmitted to 

 Ihc Society, specimens of minerals, which Mr. Delissc and Dr. 

 Lyall were commissioned to examine, and to report on them. 



Mr. J. Desjardins read an analysis of the Zoologic depart- 

 ment in the account of the voyage of PUranie, by- Mr. M. Quoy 

 and Gaimard. He elucidated especially those passages which 

 relate to the Mauritius, in the four great classes of vertcbratcd 

 animals. 



The President presented to the Society, as a donation from 

 Mr. Chaix, a colonist, 1. The Traite sur les puits Artesiens, by 

 F. Gamier, 2d edit. 2. A pamphlet on the manipulation of 

 sugar and on other branches of colonial industry. 3. A pam- 

 phlet on percussion presses. 



March 8, and April 11. — The Secretary presented to the 

 Society, the Anub/zc des Travaux dc l' Academic des Sciences de 

 Paris, for the different years 1822, 1825, 182G, and 1827, by 

 Baron G. Cuvier: these analysis having been sent to him,by 

 the Secretary of that illustrious body. 



Dr. Lyall read a notice in regard to the Astronomical Ob- 

 servations made by him at Tananarivo, capital of the kingdom 

 of the Ovas, in Madagascar: from it results that this city is in 

 11°. 56'. 20". south lat. and 47°. 57'. 46". long, east of Green- 

 wich, or 45°. 37'. 22". east of Paris. 



Dr. Lyall also communicated some details in regard to two 

 plants which Mr. Bojer met with in Madagascar, and which 



