Proceedings of the American Academy of Arts and Sciences. 

 Vol. XXXV. No. 26. — June, 1900. 



ON THE SINGULAR TRANSFORMATIONS OF GROUPS 

 GENERATED BY INFINITESIMAL 

 TRANSFORMA TIONS. 



By IIexuy Tabek. 



MARINE BIOLOQIGAL LABORATORY. 



Received < <^yyr\^.. l^^.J^.^..., 



Accession No. //>3..'/~.. 



Given by U?4-kw^.. 6^ 

 Place, 



%*Ho book OP pamphlet is to be removed from the Liab- 

 opatopy uiithout the pepmission of the Tpustees. 



