BY C. S. WILKINSON, F.G.S., F.L.S. 437 



and mystical performances had been gone through by all the 

 natives, the old chief produced the " rain-stone," which had been 

 carefully kept wrapped-up in leaves and a piece of rag, and showed 

 it to Mr. Slee, but would not let him to touch it. He then buried 

 it in the sand. 



On one of the creeks near the diggings are some marks of a high 

 flood, which the natives said took place after they had performed 

 the above mentioned ceremony over an unusually large rain-stone. 



On the Brain of Grey's Whale (Kogia Greyi.) 



By William A. Haswell, M.A., B.Sc. 



[Plate xxl] 



The acquisition recently by the Australian Museum of a fresh 

 specimen of Grey's Whale has afforded me the opportunity of 

 examining the brain of this rare Cetacean. For comparison I 

 have the brain of only one other species, viz., that of the species 

 of Delphinus (D. Fosteri) common on the New South Wales 

 Coast. 



The total length of the Kogia was nine feet six inches, which 

 may be regarded as about the average length of these small 

 Cetaceans. The length of the encephalon is 6§ inches, of 

 which 4 J inches are taken up by the cerebral hemispheres ; 

 the weight of the whole brain with the membranes removed 

 is about 16oz. In the medulla the olivary bodies are very 

 large, though scarcely so prominent as in Delphinus. The 

 cerebellum is relatively much smaller than in Delphinus ; the 

 greatest breadth is about four inches, the mesial lobe is smaller in 

 proportion, and the lateral lobes are nearly symmetrical. The 

 pons is not prominent, its breadth is about an inch, and its antero- 

 posterior extent less than three-tenths of an inch. The antero- 

 posterior extent of the nates is greater than that of the testes, but 

 the latter are much the more prominent ; they are separated 

 on either side by a well-marked groove which makes an angle of 

 about 60° with the mesial longitudinal axis. 



