New Series, No. 194 (Vol. 49, Part 2). Price 10s, net. 
“\S 3) NOVEMBER, 1905. 
THE 
QUARTERLY . JOURNAL 
OF 
MICROSCOPICAL SCIENCE. 
EDITED BY 
BH. RAY LANKESTER, M.A., D.Sc., LU.D., F.R.S., 
HONORARY FELLOW OF EXETER COLLEGE, OXFORD; CORRESPONDENT OF THE INSTITUTE OF FRANCE 
AND OF THE IMPERIAL ACADEMY OF SCIENCES OF ST. PETERSBURG, AND OF THE ACADEMY 
4 OF SCIENCES OF PHILADELPHIA, AND OF THE ROYAL ACADEMY OF SCIENCES 
OF TURIN; FOREIGN MEMBER OF THE ROYAL SOCIETY OF SCIENCES OF 
GOTTINGEN AND OF THE ROYAL BOHEMIAN SOCIETY OF SCIENCES, AND 
; 
OF THE ACADEMY OF THE LINCEI OF ROME, AND OF THR AMERICAN 
ACADEMY OF ARTS AND SCIENCES OF BOSTON; ASSOCIATE OF THE 
‘ ROYAL ACADEMY OF BELGIUM; HONORARY MEMBER OF THE 
2 NEW YORK ACADEMY OF SCIENCES, AND OF THE 
CAMBRIDGE PHILOSOPHICAL SOCIETY, AND OF 
: THE ROYAL PHYSICAL SOCIETY OF EDIN- 
: BURGH ; HONORARY MEMBER OF THE 
} BIOLOGICAL SOCIETY OF PARIS, 
FOREIGN ASSOCIATE OF THE NATIONAL ACADEMY OF SCIENCES, U-S., AND MEMBER OF 
THE AMERICAN PHILOSOPHICAL SOCIETY j 
4 DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM, LATE FULLERIAN 
PROFESSOR OF PHYSIOLOGY IN THE ROYAL INSTITUTION OF GREAT BRITAIN; 
LATE LINACRE PROFESSOR OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGE, OXFORD. 
WITH THE CO-OPERATION OF 
ADAM SEDGWICK, M.A., F.RS., 
FELLOW AND TUTOR OF TRINITY COLLEGE, CAMBRIDGE; 
W. F. R. WELDON, M.A., F.R.S., 
LINACKEK PROFESSOR OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGK, OXFORD. 
LATE FELLOW OF ST. JOHN’S COLLEGE, CAMBRIDGE 3 
AND 
SYDNEY J. HICKSON, M.A., F.RS., 
BEYER PROFESSOR OF ZOOLOGY IN THE OWENS COLLEGE, MANCHESTER, 
WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 
JTONDON: 
‘J. & A. CHURCHILL, 7 GREAT MARLBOROUGH STREET. 
1905. 
Adlard and Son, ]} ~: .-.~. [London and Dorking 
Pa eT eee ST ae Se 
