Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XXXV. No. 2. 



THE ANATOMY AXD PHYSIOLOGY OF THE MOUTH-PARTS 

 OF THE COLLEMBOLAN, ORCIIESELLA C1XCTA L. 



By Justus Watson Folsom. 



With Fouk Platks. 



CAMBRIDGE, MASS., U.S.A.: 



PRINTED FOR THE MUSEUM. 

 Jilt, 1899. 



