298 W. Gibbs on Urie Acid. 
nitrogenous and non-nitrogenous terms of the several groups 
can hardly I think be denied, and no theory which has hitherto 
The attentive study of the polymeric forms of cyanyl will 
also I think serve to show that a number of derivatives 
ssyl in the form of cyanhydric acid we pass to no | d 
Conversely we pass from marsh gas to cyanhydr¢ ac 
: j £ 7 
as primitives. I am disposed to think, however, a 1 
the whole better and. simpler for the purpose which 
View. 
Cambridge, Aug. 15th, 1868, 
