SEP 



1 Q 



■nr 



New Series, No. 176 (Vol. 44, Part 4). Price 10s. 



r, ^o. n AuarsT, 1901. 



THE 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



EDlTKli UY 



E. KAY LANKESTEll, M.A., LL.D., F.R.S.. 



IIONOIIAKY FKLLOW OK KXETKll COM.EOK, 

 AND OF THK IMPKUIAI. ACAUKMV OF i 

 OF SCIEMCKS OF FUILAI1EI,I>HI A 

 SOCIETY OF SCIE.NCES, AND 



OXFOKII ; CORKKSrOMlKNT OF THE IXSTITt'TE Ol 

 CIKNCES OF ST. PKTEKSDUIlG, AND OF THE ACADE 



FOKKIGN MRUDV'R OF THK UOYAt. BOHEMIAN 

 >F THK ACADEMY OF THE I.INCEI OF ROMB : 



IIRARY MEMBER 



CAMRiiiDGE rnii.t 



PHYSICAL SO 

 MEMBER 



>80FniCAI. su< 



niKTY OF KDi: 



THK DIOl 



OF PARI 



HE NATURAL HISTORY llEPAKTMKNTi 



JFES90R OF PHYSIOLOGY IN THK KOYA 



;rE8, AND OF TUi 

 n OFTHE ROYAL 

 HONORARY 

 SOCIETY 



.ATK Fl'LLKHI 



WITH THE CO-OPERATION OF 



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



rELI.OW AND Tl'TOR OF TRINITY COM.KOE, CAMBKIDGK; 



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



MNACKE PROFKSSOR OF COMPARATIVF, ANATOMY AND FF.LI.OW OF MERTON CUI.LEGB, OXFORD; 

 LATE FELLOW OF ST. JOIIN's COLLEGE, I'AMBRIDUB ; 



AND 



SYDNEY J. HICKSON, M.A., F.ll.S., 



BEVER PROFESSOR OF ZOOLOGY IN THE OWENS COLLEGE, ?IANCH E3TEK. 



WITH LITHOGRAPHIC PLATES AND ENGRAVIISGS ON WOOD. 



London : 

 j. & a. chuechill, 7, gee at marlborough street. 



1901. 



.Vdlard and Son,] 



[Bartholomew Close. 



