PRESERVATION OF INSECTS. 291 



is written in English ; one volume, with numerous 

 plates. It contains, at page 217, generic descrip- 

 tions of the British Orthoptera. The author is 

 not aware of any work which describes the species. 



942. Hemiptera. The Entomologist's useful 

 Compendium, by George Samouelle. This work 

 contains, at p. 220, descriptions of all the British 

 genera of Hemiptera. The author is not aware of 

 any work which describes the species. 



943. Neuroptera Stirps, Termetina. Supple- 

 ment to the Systematical Entomology (Entomo- 

 logia Systematica Supplementum), by J. C. Fabri- 

 cius. In this work many British species of Psocus 

 are described. 



944. Neuroptera Stirps, Perlina. Memoir on 

 the Larva of Nemoura, by F. J. Pictet, published 

 in the Annals of the Natural Sciences, Vol. XXVI. 

 p. 369; and of Perla, Vol. XXVIII. p. 44. 

 Both these memoirs are written in French. 



945. Neuroptera Stirps, Phryganina. 1. De- 

 scription of some Nondescript Species of May-flies 

 of Anglers, by John Curtis, published in the 

 London and Edinburgh Philosophical Magazine, 

 Vol. IV. 



946. 2. Researches into the History and Ana- 

 tomy of the Phryganites (Recherches pour servir 

 a 1'Histoire et k T Anatomic des Phryganides)^ by 

 Fra^ois Jules Pictet ; one volume, 20 plates ; a 

 work of very great research and extraordinary merit. 



947. Neuroptera Stirps, Ephemirina. De- 



