1871.] 129 [Brewer. 



Mr. Brigham said he had found a conglomerate lava in one 

 of the Hawaiian islands, containing rounded pebbles, which 

 after having been broken, undergo a change in the arrange- 

 ment of material. By weathering, they scale off, and on 

 splitting them, they show a concentric arrangement, and can 

 be peeled off in laminae. 



Dr. Jackson remarked, concerning Mr. Niles' two speci- 

 mens, one of quartzite, the other of argillaceous slate, that 

 the former resists, while the latter undergoes disintegration, 

 though they lie together. The argillaceous clays consolidate 

 around them and form slates. 



Mr. Niles found the evidence of glacial action on the con- 

 glomerate, grinding down the hard and soft rocks to a smooth 

 and level surface. 



The President called attention to the perfect cast skin of 

 a lizard, prepared by Mr. J. T. Ogden, and presented through 

 Mr. R. C. Greenleaf to the Society. It was obtained with 

 difficulty while the animal was in the act of swallowing it. 



March 1, 1871. 



The President in the chair. Thirty-eight persons present. 



Dr. Thomas M. Brewer exhibited the egg of the Mooruk, 

 Casuarius Bennettii, which the Society had recently pur- 

 chased, and read from the Proceedings of the Zoological 

 Society of London, an interesting account of this bird, which 

 inhabits New Britain, and of its habits in domestication. 

 It resembles in some respects the Dinomis. 



PROCEEDINGS B. S. N. H.— VOL. XIV. 9 NOVEMBER, 1871. 



