fome of the late Difcoveries in Science. 21 1 



Fifhes. — Bloch has publifhed the laft fix volumes of his 

 beautiful work on fifties. They contain, like the former fix } 

 216 plates, on feveral of which are reprefented from two to 

 three fubjecxs. He has been obliged to make feveral new 

 genera. This is one of the moft beautiful works that ever 

 appeared on ichthyology. 



Lacepede is preparing a large work on the fame fubjeft; 

 He has (hewn that the anableps, a fifh teherto believed to 

 hare had four eyes, has in reality only two ; but each of its 

 eyes has two corneas, two cavities for the aqueous humour, 

 two i rides, two pupils, but only one cryftalline humour., 

 Different naturalifts have publiflied feparate memoirs on 

 fome particular kinds of fifh, and their different parts 4 

 Herb ft has publiflied at Berlin a very beautiful work on 

 crabs, with coloured plates. 



Infetls. — This part of natural hiftofy is become almoft as 

 immenfe as botany. Brogniard continues his fuperb collec- 

 tion of the butterflies of Europe. Fabricius'has given a new 

 edition of his Entomologza Syfsmatica, emendatd ct autia. 

 Latrcille has publiflied his Genera of Infetls, and D'Anthoihe 

 has publiflied an excellent memoir on the cynips (gall infecl) 

 of the oak. Bofc has defcribed fome other fpecies of the 

 cynips, and Luce has defcribed a phofphorefcent beetle, 

 found near De Grafle, 



Panzer is now publifliing a work on the infefts of Ger- 

 many, entitled Fauna Infedorum Germanize, printed at Nu- 

 remberg. He has publiflied alfo a hiftory of the infecls of 

 America. Racufchel has printed a^'ork at Leipfic, entitled 

 Nomrnclator Entomologicus emendatus. Hedwig has given a 

 new edition of the Fauna Jijlens Infecla, by Koffi ; in which 

 are defcribed the infects found in the neighbourhood of Flo- 

 rence and Pifa. Martin has publiflied the Infefts of Eng- 

 land. This work, like that on fliells, is executed in a maf- 

 terly manner. 



Poljpiers. — There are certain fubftances which are neither 



animals nor vegetables, called poljpiers ; fuch as coral, coral- 



P % lilies, 



