TRANSACTIONS OF THE SECTIONS. 



153 



lissuve on encli side, connected with tlie inner surface of the hemisphere, and 

 bounded in front by the transverse or crucial sulcus, also fonninn;- behind an 

 occipital portion lyinj^- under the supraoccipital lamina. In these different convo- 

 lutions there are certainly minor variations in different dogs. 



When we see that the brain of the dog is no larger and not more convoluted 

 than that of the sheep, we must infer that he owes his sagacity in a great measure 

 to the training and companionship of his master. But no doubt he had its germs 

 by nature, together with fine scent, fleetness, watchfulness, and hunting propen- 

 sities ; he hence became, as Cuvier expresses it, " la conquete la plus complete, la 

 plus singuliere et la plus utile que I'homme ait faite." 



In the Table several of the above facts will be manifest ; for inst.ance, the New- 

 foundland dog, thovigh it was so sagacious as to rescue a drowning man at Southport, 

 and though the weight of its body would have been four or five times as mucli as 

 that of one of the small terriers, had its brain only about one fifth larger than 

 these last. 



The capacities of the skulls were ascertained by measuring the interiors by 

 means of sand, and reducing to the equivalents of the natural contents. 



Sheep-dog 



Old male Trentham Fox-hound 



Setter 



Mastiff 



Ketriever or large Spaniel .... 



Colly : 



White Bull-dog 



Newfoundland 



Greyhound 



Fox-like Mongrel 



Drover's-dog 



Young Bull-terrier 



Smootli Terrier, female 



Hough Terrier 



Small Spaniel 



Lap-dog 



Rough Terrier, female 



European Wolf , 



Indian Jackal 



English Fox 



Arctic Fox 



411 

 1-^f 



m 



132- 



On the Unu'Jiolesomeness of Flesh Diet in Tropical Climates. 

 By C. 0. Geoom Napiek. 



Uher Hie Physemaricn (Halipliysoma und Ga.strophysema), von Ernst Haeckei,. 



Diese kleinen Zoophyten, welche auf dera Meeresgrunde festsitzend leben, 

 gehiiren zu den altesten und einfachsten rmter alien Metazoen und stehen in 

 erwachsenem Zustaude unter alien Thieren der Gastrula-Vovm am niichsten. 

 IluUphysema ist zuerst von Bowerbank als eine kleine Spongie, Gastrophyscma 

 hingegen (unter dem Namen Squamulina scapula) von Carter als ein Rhizopode 



