174 



Calappa, and Calappus-Stein ; accompanied by figures of two forms, 

 round and ovoid. He states that they are chiefly found at Macassar 

 d,nd other localities in Celebes, and even there do not occur so often 

 as once in a thousand cocoa-nuts; similar concretions are found in 

 other fruits from the same localities. A few have been found in the 

 trunk of the cocoa-nut tree. In the nut, they are sometimes attached 

 to the inside of the shell, and sometimes move freely in the milk. The 

 smaller ones, of the size of a pea, are always found unattached. 

 They are prized by the Indians above the most precious gems. 



From the hardness and general appearance of the cocoa-nut pearl, 

 it has been regarded as a siliceous concretion ; analogous to the 

 tabasheer, occasionally found in the joints of the bamboo ; and I pre- 

 sume that no microscopic or chemical examination has been made 

 except by myself. 



Mr. Burt G. Wilder presented a paper on the Comparative 

 Myology of the Chimpanzee. Referred to the Publishing 

 Committee for publication in the Journal. 



Mr. John Homans, Jr., exhibited two living tritons, from one of 

 which, about a year since, he removed the entire fore-leg ; no bleed- 

 ing resulted, the wound healed, and in a month a Httle pad had 

 appeared, having two indentations, the rudiments of future toes ; last 

 October the limb was entirely reproduced, though of less size than 

 the other, having grown but little if any for six months ; from the 

 other he had removed a hind leg at the ankle-joint, which had also 

 been reproduced, though of less size than the other ; both of these 

 were adult when operated on. 



The President stated that the formation of two toes, and two lateral 

 subsequently, was an exception to the law prevailing in mammals, 

 birds, and scaly reptiles ; the proteus and amphiuma which have only 

 two toes on one or both sets of limbs, represent the embryonic con- 

 dition, as illustrated by the growth of the above-reproduced Hmbs ; 

 other batrachians have three, four, and five toes, the fore-feet, how- 

 ever, never having more than four. 



Mr. Marcou called attention to two ammonites, A. hifrons or Wal- 

 coti and A. communis, presented to the Society several years ago, by 

 Rev. Mr. Malcom, by whom they had been brought from the banks 

 of the river Irrawaddi. The former, if the locahty had been unknown, 

 he should pronounce Jurassic, and identical with those of England 

 and France, and the latter as belonging to the upper Lias of England. 

 Previous to this, he was not aware that any Jurassic fossils had been 

 found in the East Indian peninsula, or any where in Asia so far south 

 as this. 



Mr. Bouve stated that the ammonites from India were accompanied 

 by the teeth of an elephant and a ruminant, fossil wood, and fossil 



