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convolutions of the brain, these fibres being in two sets ; one carrying 

 an impression upwards to the cortical substance, the force returning by 

 the other to the motor i)art of the sensorium. The cineritious layer 

 was made up of vascular members by which the great part of the 

 circulating fluid was conveyed to the cortical substance, and the whole 

 action of the brain was dependent upon that supply. 



As showing the importance of this, it might be mentioned, it had 

 been established that, although the brain was estimated at a 45th part, 

 by weight, of the entire body, these arteries, conveying blood to the 

 cranium for the purposes of the brain, were actually one-fifth of the 

 whole circulating mass ; and although there were four principal vessels 

 conveying arterial blood into the cranium, encircling it and branching 

 off to supply the whole external surface of the brain, they were so 

 powerful that one was sufficient to keep up the circulation in a subdued 

 degree. 



With regard to the cerebellum, it was little understood ; but the 

 theory had been propounded that it controlled the reproductive system. 

 The whole brain was divided into two hemispheres, united by a band, 

 in order to give them a harmonious co-operation ; and it was a curious 

 fact that, in some instances, where this connection was greatly deficient, 

 the person lacked foresight, and was utterly unable to act upon 

 experience. Before resuming his seat, Dr. Hallifax said the subject he 

 had endeavoured to deal with was a great and complex one. He had 

 given a brief outline of what he had thought worthy their consideration, 

 and he recommended those who sought further information to study 

 Dr. Carpenter's book on " Mental Physiology." 



The President, Mr. J. Dennant, conveyed the best thanks of 

 the meeting to Dr. Hallifax for his interesting lecture, remarking that 

 no Member of the Society was so competent to deal with the physiology 

 of the nervous system as the eminent doctor who had addressed 

 them. 



A discussion followed, in which the ex-President, Alderman Cox, 

 Mr. J. E. Haselwood, Mr. Wonfor, the President, and Mr. 

 Dennet took part. The interest of it centred in the automatic 

 action or othenvise of the nervous system, as laid down by Dr. Hallifax, 

 and opinions varied on the point ; Alderman Cox holding that the 

 different functions developed a certain mental activity which produced 



