Parifian Society of Natutal Htflory. — PfAIomatic Society, %^ 



SOCIETY OF NATURAL HISTORY AT PA^RIS. 



C. Latreille has tltfcribed a new genus of mfe^ls. Thi* 

 gt'mis, to which-he lias given the name of peiectTius, froin a 

 Greek vvofd, the application of which is Jittle known, be- 

 longs to the order of the bymetioptera of Linnaeus, or that of 

 the piezates of Fabticius. The infe6l which forms the fub- 

 je^ of this genus has been hitherto placed iu that of the 

 ichneumons of Fabricius. 



PHILOMATIC SOCIETY. 



C. Bofe has defcribed a new fpecies of pulex {puhx fafcia- 

 tus). This genus in fyftematic authors contains only two 

 Ijjeciefe: one known in every country, which attacks almoft 

 all the ;mamniiferae,-and diilinguifhed by the name oiirritans'y 

 the other (the nigud) found in warm countries, which in-; 

 finuates itfelf into the fkin, and on that account is called 

 penetrans, C. Bofe has for a long time obferved a third fpe^ 

 cies which lives on moles ; but he neglected to defcribe it, 

 and it was loft in his colle6lion. He however found it 

 again not long ago on a dormonfc (myoxus nitela LiN.), and 

 hus made it known. 



Its colour and form are the fame as thofe of the common, 

 kind, but it differs from them by a row of very black fliort and 

 thick briftles at the upper part of the fecond ring. He there- 

 fore propofes to chara<Slerife it by adding to the defcription of 

 the pu lex itfitans the following words : vertice. fafcid nigr^^ 

 becaufe the hairs have a great refemblance to a band, and for 

 this reafon he calls it ^z//^.vy}7/rizj/«^, ; 



CHEMICAL NOTICES. 



M. Lampai>ius of Freyberg has notLced, that if crude, 

 •r, which is better, purifial acidulous tartrite of pdtaih be 

 heated till no more fumes or flame appear, alid water be 

 then added to it, ammonia is produced. It is heft obferted 

 while the mafs is ftill w^rm. The fame tartrite tnay be 

 employed repeatedly, and will ftill yield ammonia, as long as 

 any carbonaceous matter remains, by merely heating it, and 

 then wetting it with a few drops of water. . Aciduloua oxar. 



Ute 



