THE ENTOMOLOGIST. 91 



Answers to Correspondenis. 



Windpipes of Insects : Organs of the Senses in Insects. — 

 I have read your article about the windpipes of insects 

 (Entoni. ix. 62) with much pleasure, and I think you are 

 doing good service in thus enlightening our entomological 

 friends, so few of them trouble themselves about such matters, 

 although they are most interesting subjects for study. Species 

 hunting is all very well ; but to my mind the wonderful 

 variations and adaptations of their organs to their especial 

 purposes is by far the more interesting subject of study. 

 Who knows anything about their organs of smell } I have 

 long had some crude ideas on that subject, and I shall hope 

 to discuss that subject with you some of these days. — J. S. 

 Bowerhank ; 2, East Ascent, St. Leonard's-on-Sea. 



[Certainly not sent for publication ; but I hope Dr. Bower- 

 bank will pardon the breach of confidence I commit in 

 publishing it. It is lamentable to reflect that we have abso- 

 lutely no knowledge of the seat of hearing, taste, or smell, in 

 any of the hexapods; indeed, if we have not stood absolutely 

 still since the publication of the 'Bybel den Natuura' in 1783, 

 we may be said to have retrograded. I make no apology to 

 entomologists for my exultation in having found an approver 

 of my views. This exultation is surely allowable, when we 

 hear the paeans with which the naming of a new beetle is 

 h ailed. — Edward Neivman.^ 



Circulation of Blood in Insects. — In the last number of 

 the 'Entomologist' (Entom. ix. OO) it is stated that Dr. 

 Bowerbank discovered circulation in insects. In a magazine, 

 named 'Ward's Miscellany,' of 1838, it says that a German 

 naturalist, Behn, discovered it. I should be obliged if you 

 will kindly tell me on which side is the error. — Alfred 

 Jones; Torquay, March 14, 1876. 



[I may refer to this subject again hereafter. It will be 

 sufficient for the present to state that I have ascertained the 

 titles and dates of these papers on " Circulation of Blood in 

 Insects." 1. Dr. Bowerbank's papers are as under: — "Ob- 

 servations on the Circulation of the Blood in Insects." — 

 ^Entomological Magazine,' vol. i. pp. 239 — 244, April, 1833. 

 "Observations on the Circulation of Blood and the Distribu- 

 of the Tracheas in the Wings of Chrysops Perla." — 'Entomo- 

 logical Magazine,' vol. iv. ]»p. 179—185, October, 1836. 



