82 



sentecl to the Society by Alexancler Bain, E>q. At the request of 

 the Chairman, Dr. Harlan explained the structuic of'the heart and 

 the course of the circulalion in the pihe-headcd Allirrator, Alligator 

 Mississippensis, which he had described in detail in the ♦ Journal 

 of the Academy of Natūrai Sciences of Philadelphia.' 



Specimens of various objects of zoology, collected by George 

 Bennett, Esq., Corr. Memb. Z. S., during his late voyage to New 

 South Wales and in that colony, vvere exhibited. They were trans- 

 mitted by Mr. G. Bennett to the Royal College of Surgeons, and the 

 exhibition was made with the permission of the Board of Curators 

 of the College Museum. They included a portion of a Flj/ing-Jish, to a 

 parasite on which severaI Barnacles {Chieras, Leach,) vvere attached : 

 Severai Mollusca : a river Lobster : portions of the Death Adder, 

 &C.&C. They also included the uteriis of a Kaiignroo, "shovving the 

 foetus with & placenta attached, contained within it." Mr. Owen, by 

 whom the preparations were brought under the notice of the Society, 

 and who remarked on each of them as they vvere severally presented, 

 observed on tbis that he had not yet examined it sufficiently to de- 

 termine the structure of the umbilical appendage visible in the pre- 

 paration. It vvas accompanied by sketches by M r. G. Bennett of 

 the foetal Kongnroo in ntern, which vvere exhibited. 



Tlie preparations vvere accompanied by a letter addressed by Mr. 

 G. Bennett to Mr. Owen, and dated Sydney, Nevv South Wales, 

 February 4, 1833, froni vvhich severaI extracts vvere read. Among 

 them vvas the foliovving : 



" I have a section of one female Ornilhorhi/nchus vvhich I shot, in 

 which the milk gland is very large ; and I can novv inform you frora 

 actual observation that milk is secreted from it : it comes out (as 

 your mercury did vvhm you injected the ducts,) in small drops on 

 the surface of the skin. I intend sending you a further account of 

 this ; but you can mention it to the Zoological Society as a decided 

 fact ; and vvhich had also been seen by some intelligent gentlemen 

 in this country ; — but I vvas not satisfied to assert it until I became 

 an eye-vvitness of the fact. I vvish you to show the specimens to 

 the Zoological Society, vvith some brief comments in ^niy name, 

 stating also that I am ahout to send home a detailed account of 

 the habits and ceconomy of the Ornithorhynchus and Kangaroo." 



The exhibition vvas resumed of the nevv species ofShells contained 

 in the collection made by Mr. Cuming on the western coast of South 

 America, and among the Islands of the South Pacific Ocean. Those 

 brought on the present evening under the notice of the Society 

 were accompanied, as on previous occasions, by characters by Mr. 

 Broderip and Mr. G. B. Sovverby. They comprehended the foliovv- 

 ing species of the 



Genus Caroium. 



Cardium Cumingii. Card. testd cequivalvi, tiimiddyjrugili, rosed, 

 diaphand, egregif' cancellatd, antice rugosd, valvis postici hian- 

 tibus ; cristd anticd subalbidd ab nmbonis latere postico ad mav' 



