I50Z 



New Series, No. 182 (Vol. 46, Part 2). 



'~\ ^ ^^"^ SEPTEMBER, 1902. 



Price 10s. 



THE 



QUARTERLY JOURNAL 



MICEOSCOPICAL SCIENCE. 



EUITKI) HY 



E. HAY LANKESTEK, M.A., LL.D., F.R.S., 



UNOKAKY FKM.OW OK EXETEU C U I.I.EG E , OXl-'O U U ; C U R K ES P U N U t: N T OP TUE INSTITUTK OK FKANCE 



AM) OE TUB IMPEUIAL ACADEMY OF SCIENCES Of ST. PETERSBURG, AND OF THE ACADEMY 



OF SCIENCES OF PHILADELPHIA; FOREIGN MEMBKR. OF THE ROYAI. BOHEMIAN 



SOCIETY OF SCIENCES, AND OF THE ACADEMY OF THE I.INCEI OF ROME 



AWD OF THE AMERICAN ACADEMY OF ARTS AND SCIENCES OF BOSTON ; 



ASSOCIATE OF THE R O YA T. AC ADEM Y O F BE I.GIUM ; HON OR A R Y MEMBER 



OF THE NEW YORK ACADEMY OF SCIENCES, AND OF TitR 



CAMBRIDGE IMIILOSOPHICAI, SOCIETY, AND OF THE RDYAL 



PUYSrCAI. SOCIETY OF EDINBURGH ; HONORARY 



MEMBER OF THE BIOLOGICAL SOCIETY 



OF P A K I s ; 



DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM; LATE KULLERIAN 



PROFESSOR OK PHYSIOLOGY IN THE ROYAT, INSTITUTION OF GB EAT B RITAIN. 



WITH TRE CO-OPEliATlON OV 



ADAM SEDGWICK, M.A., F.R.S., 



FELLOW AND TUTOR OF TRINITY COLLEGE, CAMBRIDGE; 



W. F. R. WELDON, M.A., F.R.S., 



SYDNEY J. HIOKSON, M.A., F.R.S., 



BEYER PROIKSSOR OF ZOOLOGY IN THE OWENS COLLEGE, MANCHKSnUt. 



WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 



L N D K : 



& A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. 



1902. 



Adliirilanil Son.l 



[Loiiddi. and Dorkiu^^ 



