Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XXXV. No. 2. 



THE ANATOMY AND PHYSIOLOGY OF THE MOUTH-PARTS 

 OF THE COLLEMBOLAN, ORCHESELLA CINCTA L. 



By Justus Watson Folsom. 



With Four Plates. 



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



PRINTED FOR THE MUSEUM. 



July, 1899. 



