O. Loew on Hydrogenium-amalgam. 99 
The present specimens indicate that the animal to which they 
belonged was quite slender, and about six feet in length. They 
were found by Hugh Hurley, Hsq., in the Hocene greensand 
of Shark River, Monmouth county, New Jersey, and by him 
presented to the Museum of Yale College. 
New Haven, Conn., June 10th, 1870. 
Art. XIV.—On Hydrogenium-amalgam; by O. LoEw, of the 
College of the City of New York.* 
bubbles of hydrogen on allowing the mixture to stand fora 
time. This decomposition of water by zinc is intensified when 
5 per cent of ae is pressed directly after its preparation, 
between sheets of filtering paper and then spread out in a layer 
; Read before the Lyceum of Natural History, Chemical Section, Apr. 11, 
zinc-amalgam containing more than 5 per cent of zinc is a solid, and i i 
state, is not well fitted for use, though it 1d doubt 1 = ance He 
in the amalgam. zinc-amalgam of 5 per cent is readily liquified at a moderate 
heat and should then be immediately used. sits sama 
