Academy of Sciences at Peterslurgh. 2*8 # 



j§th, Speech of ihe President Novosilzof, on the daf 

 when he announced to the academy the confirmation of its 

 n.e\v regulations, loth, Piantae contortae discovered at the 

 Cape of Good Hope, by C. P. Thunberg. 20th 3 Re- 

 searches respecting the first integrals of equations with 

 partial differences, by Trembley. 21st, On the great use 

 of continued fractions in the integral calculus, by F. fcaus- 

 ler. 22d, A specimen of the metamorphosis of amphi- 

 bious zoophytes, by Lichtenstein. 23d, Observation on 

 the white variety of the lepus timidus, by A. Pansner, 

 24th, Detailed plan of a new Technological Journal, pre- 

 ceded by some general reflections, &c, by Fuss. 25th 5 

 Dissertation on the loxodromic curve, &c.,, continued by 

 Schubert. Qolh, New method of making platina mallea- 

 ble, by Count Moussin-Pouschkin. 27th, Chimitsclieskoie 

 ispytanii e kammennych ugoV yev blir goroda Borovoitschii j 

 sbtch, Vol k ova. 



The following observations, experiments* and notices^ 

 were laid before the Academy; — Meteorological experiments 

 were made at St. Petersburgh, by Inschodzof; at Mosco> 

 by Professor Bause ; at Nicolayef, at the school of naviga- 

 tion for tfie Black Sea ; at Kasan, by M. Lachtin ; at Ka-< 

 tharinenburg, by M. Hermann; at Saratof, by M. Meyer*, 

 M. Kraft communicated observations respecting a galvanic 

 experiment; an experiment on the preparation of jelly 

 from bones ; on the present declination of the magnetic 

 needle. M. Lowitz transmitted notice of a fat substance 

 extracted from Siberian cochineal, with a specimen, antf 

 observations on a remarkable crystallization of nitro-mu- 

 riate of platina, effected by intense cold. By Mr. HeN 

 iriann, account of a new gold mine .discovered on the 

 Tshussovaia; on the freezing of quicksilver at Katherinen- 

 burg, and on a remarkable fire-ball observed at the same 

 place. By M. Kritschevskii, on some phaenomena which 

 occurred during the freezing of quicksilver; and,« by M. 

 Robertson, a notice in French, respecting observation? 

 made in the upper regioris of the atmosphere, during an 

 aerial excursion. The Academy has lately published the 

 first number of a Technological Journal, of which a vo- 

 lume, consisting of two numbers* will appear annually.The 

 object of this useful collection is to make the public ac- 

 quainted, in a manner suited to the capacity of readers in 

 general* with the newest technological discoveries, and 

 their application to different purposes, 



Peters- 



