( 398 ) 



XVI. An account of Prof. Plateau's recent exjjcriments 

 on the vision of Arthropods. By David Sharp, 

 M.B., F.L.S., F.Z.S., &c. 



[Eead June 5tb, 1889.] 

 Plate XIII. 



Prof. Plateau, who is so well known by his numerous 

 researches on the physiology of Arthropods, has recently 

 published a series of five memoirs, giving details of 

 experiments he has carried on with the object of ascer- 

 taining what are the actual powers of vision possessed 

 by insects and other Arthropods. The experiments are 

 of great interest, and, as they are published in a work 

 that does not come into the hands of many entomologists, 

 I have thought that a brief account of them would be of 

 interest to the Fellows of the Entomological Society of 

 London. The memoirs in question are called : — 



" Recherches experimentales sur la vision chez les 

 Arthropodes." 



"Premiere partie : a, Resume des travaux effectues 

 jusqu'en 1887 sur la structure et le fonctionnement des 

 yeux simples ; b, Vision chez les Myriopodes." 



* Bulletin de I'Academie royale de Belgique,' 1887, 

 Nos. 9 and 10. 



" Deuxieme partie : Vision chez les Arachnides." Op. 

 cit., No. 11. 



" Troisieme partie: a, Vision chez les chenilles; b, 

 role des ocelles frontaux chez les Insectes parfaits." Op. 

 cit., 1888, No. 1. 



" Quatrieme partie : Vision a I'aide des yeux composes. 

 a, Resume Anatomo-physiologique ; b, Experiences com- 

 paratives sur les Insectes et sur les Vertebres." 

 Memoires couronnes, publics par I'Academie royale de 

 Belgique, 1888, vol. xliii. 



" Cinquieme partie : a. Perception des mouvements 

 chez les Insectes ; b, Addition aux recherches sur le vol 

 des Insectes aveugles; c, Resume general." 'Bulletin 

 de I'Academie royale de Belgique,' 1888, No. 11. 



TRANS. ENT. SOC. LOND. 1889. — PART III. (OCT.) 



