as elsewhere, the blood of the bronchial arteries is poured into the 

 pulmonary veins. 



Dr. Heale has advanced the opinion that the bronchial arteries do 

 not supply the bronchial mucous membrane at all, and that they 

 neither communicate with the pulmonary arteries nor veins. My 

 observations have given results entirely opposed to this view. 



With reference to the view taken by Adrian!, and subsequently 

 adopted by Dr. Thomas Williams, that the vessels of the bronchial 

 mucous membrane terminate in the pulmonary veins, and those of 

 the deeper plexus in the bronchial veins, it is not borne out by the 

 experiments I have made, which appear to prove that not only do 

 the same vessels supply the superficial and deep plexuses of the 

 tubes, but that both plexuses discharge their contents into the same 

 receptacles. 



II. "On Certain Sensory Organs in Insects, hitherto unde- 

 scribed." By J. BRAXTON HICKS, M.D. Lond., F.L.S. &c. 

 Communicated by JOHN W. LUBBOCK, Esq. Received 

 May 14, 1859. 



(Abstract.) 



The author commences with an allusion to papers published in the 

 Linnean Society's * Journal' and 'Transactions' respecting groups of 

 organs, abundantly supplied with nerves, on the bases of the halteres 

 of Diptera, also on the nervures of the wings and on the elytra of 

 Coleoptera ; and now gives a drawing which shows forth these organs, 

 and the nerve proceeding to them on the halteres. He then describes, 

 for the first time, somewhat similar organs on the apices of the palpi 

 of some Diptera, and on their base in many Hymenoptera, as Apis, 

 Vespa, Nomada, Megachile, Bombus, &c. These are well shown in 

 the Vespa Crabro, or Hornet, where the nerve is seen expanding in 

 the thin membrane which covers in the opening beneath in the wall of 

 the member. 



In the paper also, it is pointed out for the first time, that on the 

 apex of the palpi of Lepidoptera there is invariably found a structure 

 which is more or less of a cavity, generally tubular, and sometimes 

 extending inwards nearly the length of the last segment, but some- 



