442 NOTES AND EXHIBITS. 



Beechworth, Victoria. The President explained that these were 

 pseudomorphs, formed in cavities between crystals by the deposi- 

 tion of silica from water holding that mineral in solution. 



Also, a rare form of Cyprcea Lynx of Linn. This rare form 

 differs from those abnormal forms found in New Caledonia by 

 having the marginal callus as a thick opaque cream-coloured 

 layer reflected over the whole dorsal surface of the shell except at 

 the median line. The base of the shell was not thickened and 

 opalized as in the New Caledonian specimens. 



Dr. Cox also exhibited some remarkable forms of deformed 

 eo-o-s from the common hen. One of these measured over two 

 inches long, was of a conical form, and bent towards one end. 

 These specimens were all the property of Mr. Flateau. 



Also, three cocoons of a large silkworm of the genus Attacus, 

 and a gall of a Coccus, obtained at the North Shore, which had 

 been sent to Dr. Cox by Mr. William Hemming. 



Mr. Brazier exhibited on behalf of Mr. J. F. Bailey, of Mel- 

 bourne — specimens of Voluta niaculata nearly all white, Voluta 

 volva four inches long, Cyprma eximia Sowerby, from Eocene 

 beds, Port Phillip ; Cyprcea, a new species also fossil ; a fine 

 specimen of Cornelian from Basalt in the bed of the Yarra River ; 

 and a number of fossil Micro-Bryozoa from the Gippslancl Lakes, 

 which he placed at the disposal of the Members. 



Mr. Haswell exhibited a beautifully prepared skeleton of the 

 Port Jackson Shark, prepared by Mr. H. Barnes of the Museum- 

 according to a process recently invented by Professor S. Jeffrey 

 Parker, of Duneclin. 



Mr. J. G. Griffin, Assoc. M.I.C.E., C.E., exhibited nine native 

 stone weapons from various parts of New South Wales ; one 

 a flat piece of slate, 7 inches long and 2 J wide by f of an inch 

 thick, is peculiar, and was probably used to cut bark, or even for 

 skinning animals. Another, a pebble of Diorite, was dredged from 

 the Hawkesbury. 



