TlJANsiACTIOXS OF SECTION D. 



/ / < 



1 ranches connecting tlie sympathetic and vaprus, but with anatomical relations 

 rarying not only in difl'ereiit species, but in ditierent specimens of tlie same species. 

 The influence of these nerves over the heart has been described. 



(2.) Certain other nerves witli peculiar functions in relation to the heart that 

 cannot be readily summarised. 



(3.) They have also noted in the case of two species of land turtle that the vevrp 

 rnvce superiores when isolated from tlie heart are pulsatile, and under the control of 

 lilt' vagiui. 



■ 



0. On the Functions of the Marginal Cunvolution. 

 Bij V. HoRSLEY, J1/.7J., B.Sc, and Professor E. A. Schafer, F.B.S.^ 



Tlie object of experiments made by the authors was to ascertain the effect of 

 -timulation of localised areas of the mai-giual convolution in the monkey, and their 

 :,'5iiUs filled up a gap in the well-known work of Ferrier in thi ♦; they were able to 

 ,<buw that removal of certain areas, the excitation of which had previously caused 

 movements of muscles of tlie trunk, Sec, on both sides led to paralysis of muscles of 

 the trunk of such a degree that the animal was unable to stand. By removal of 

 t'::o frontal lobep no paralysis of voluntary luovements was obtained. These results 

 \\vreiii opposition to those obtained by Munk, of lierliu. 



TUESDAY, SEPTEMBEll ;?. 



The following Papers and Ileport were read : — 

 I. On the Oca of Monotremcs. Bj Professor H. N. Mosklev, LL.D., F.li.S. 



The President stated that he had a most important announcement to make. He 

 had just received a cablegram from Sydney, from Professor Liversidge, announcing 

 that Mr. Caldwell, the Balfour sttideni, who was sent out to Australia to investigate 

 the mysteries in conuection with the mammals of that country, had discovered 

 that the Monotremes were oviparous. He did not consider that a more important 

 ti'legrani in a scientific sense had ever passed through the submarine cables before. 

 The Monotremes formed two families characterised by the duck-billed Platypus and 

 fill animal which was known to the Australians as the ant-eater. These were the 

 l)\ve3t forms of mammals, and it had never been known how they produced their 

 Toiin^. The extraordinary discovery was now made that these mammals laid eggs, 

 find that the development of these eggs bore a close resemblance to the development. 

 of the eggs of the Iteptilia ; proving that these animals v. ere more closely connected 

 with the Sauropsida than with the Amphibia. 



Beiwrt on the Ivfluence of BodiJij Exercise on the Eliiiiinatiun of 

 Nitrogen. — See lleports, p. 2G5. 



3. EemarJcs on the Caldwell Automatic Microtome. 



vantea nerves ; 



4. On Sensory Nerce-sacs in the SJcifi of Amiurus (Silurid(v). 

 Bij Professor R. Ramsay Wright, M.A., B.Sc. 



In his recent work, * Ueber die Ilautdecke uud Ilautsinnesorgane der Fische,' 

 h''y dig refers to certain pores in the skin of Lota which, although not situated in 

 tie course of the lateral line or in that of the ' mucous ' canals of the head, 



' See • Proceedings of the Royal Society,' No. 231, 1881. 



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