MANUAL OF THE INFUSORIA: 



INCLUDING A DESCRIPTION OF ALL KNOWN 



FLAGELLATE, CILIATE, AND TENTACULIFEROUS PROTOZOA, 



BRITISH AND FOREIGN, 



AND AN ACCOUNT OF THE 



ORGANIZATION AND AFFINITIES OF THE SPONGES. 



BY 



W. SAVILLE KENT, F.L.S., F.Z.S., F.R.M.S., 



FORMERLY ASSISTANT IN THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM. 



VOLUME I. 



LONDON: 



DAVID BOGUE, 3 ST. MARTIN'S PLACE, 



TRAFALGAR SQUARE, W.C. 



I88o-l88l. 



