313 



This affords 

 the same 

 products. 



SCIENTIFIC NEWS. 



iThese being powdered, mixed, and triturated together*, 

 they are put into a crucible, which is to be covered, and 

 exposed to a strong heat. During this operation, the oxi- 

 geri of the nitric acid* attacking the sulphur of the anti- 

 monial sulphuret, converts it into sulphuric acid, which 

 unites with a portion of the potash, and forms sulphate of 

 potash. The remainder of the free potash retains some 

 antimony oxided to a minimum. The white powder, that 

 is left in the crucible, is the same as that sold so dear 

 by the English* 



Mr. Pully informs me, that he has analysed his powder, 

 to compare it with that of Dr. James; and that he has 

 found it to contain the same principles, and in the same 

 proportions 



SCIENTIFIC NEWS. 



Werncrian Natural History Society, 



Grasses. juLT the meeting of this Society on the 11th of March; 



Dr. Yule read an interesting memoir on the natural order 



Plants with 1 gramineie, with introductory observations on monocotyledon 



and 2 cotyle- n0 us plants, in which he contrasted these wkh the dicoty- 

 ledonous class from the period of germination to the com* 

 plete evolution of their stems. The Doctor is to continue 

 the subject in another paper. 



Scottish testa- Mr. Laskey laid before the Society a list of Scottish tes- 

 tacea, as far as they had fallen under his own observation, 

 with remarks on the new and rare species. Of the genus 

 chiton he enumerated 4 species; of lepas, 3; balamis 6; 

 pholas 4; mya g, including 3 new species; of ligula (a 

 lately constituted genus) 7 species; solen 6; tellina 15, with 

 a new species named by Colonel Montagu, t. laskeyi; car- 

 dium 10; mactra 6; donax 3 ; Venus 23, including 9 new 

 species; chama 1; area 6; pecten 6; ostrea 1; anomia 4; 

 mytilus 11; pinna 1; naujilus 3 ; cypraea 1; bulla 13, in- 

 cluding 2 new species ; voluta 8, 4 of them new ; bucci- 



11UIP. 



eta 



