386 Proceedings of the Royal Irish Academy. 



The term hexoside lias been applied by me to all such derivatives 

 of the hexoses (glucose, galactose, fructose, marmose, &c.). Analogous 

 derivatives of the pentoses, tetroses, &c., may be called pentosides, 

 tetrosides, &c. In general, any such derivative of a polyose may be 

 called a polyoside. Although the latter term is probably the best for 

 the whole series, I have, in the present paper, used the word glycoside, 

 suggested for the same purpose by van Rijn. 



