New Series, No, 207 (Vol. 52, Part 3). Price 10s. net. 
Subscription per volume (of 4 parts) 40s. net. 
JUNE, 1908. 
THE 
QUARTERLY JOURNAL 
OF 
MICROSCOPICAL SCIENCE. 
EDITED BY 
Sir RAY LANKESTER, K.C.B., M.A., D.Sc., LL.D., F.B.S., 
HONORARY FELLOW OF EXETER COLLEGE, OXFORD} CORKESPONDENT OF THE INSTITUTE OF FRANCE, 
AND OF THE IMPERIAL ACADEMY OF SCIENCES OF 8ST. PETERSBURG, AND OF THE ACADKEMY 
OF 8CIENCES 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 80CIETY 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 
NEW YORK ACADEMY OF SCIENCES, AND OF THE 
CAMBRIDGE PHILOSOPHICAL SOCIETY, AND OF 
THE ROYAL PHYSICAI, SOCIETY OF EDIN- 
BURGH, AND OF THE 
BIOLOGICAL SOCIETY OF PARIS, AND OF THR CALIFORNIA ACADEMY OF SCIENCES OF SAN FRANCISCO, AND 
OF THE ROYAL ZOOLOGICAL, AND MALACOLOGICAL SOCIETY OF BELGIUM; 
CORRESPONDING MEMBER OF THE SENKENBERG ACADEMY OF FRANKFURT-A-M 5 
FOREIGN ASSOCIATE OF THE NATIONAL ACADEMY OF SCIENCES, U.S., AND MEMBER OF THE 
AMERICAN PHILOSOPHICAL SOCIETY 35 
HONORARY FELLOW OF THE ROYAL SOCIETY OF EDINBURGH; 
LATE DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS OF THE BRITISH MUSEUM, LATE PRESIDENT OF THE 
BRITISH ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE; LATE FULLERIAN PROFEKSSOR OF 
PHYSIOLOGY IN THE ROYAL INSTITUTION OF GREAT BRITAIN 5 
LATE LINACRE PROFESSOR OF COMPARATIVE ANATOMY AND FELLOW OF MERTON COLLEGE, OXFORD. 
WITH THE CO-OPERATION OF 
ADAM SEDGWICK, M.A. F.RBS., 
PROFESSOR OF ZOOLOGY AND COMPARATIVE ANATOMY IN THE UNIVERSITY OF CAMBRIDGE S 
SYDNHY J. HICKSON, M.A., E.R-S., 
BEYER PROFESSOR OF ZOOLOGY IN THE UNIVERSITY OF MANCHESTER; 
AND 
EK. A. MINCHIN, M.A.., 
PROFESSOR OF PROTOZOOLOGY IN THE UNIVERSITY OF LONDON, 
WITH LITHOGRAPHIC PLATES AND TEXT-FIGURES. 
F LONDON: 
J. & A. CHURCHILL, 7 GREAT MARLBOROUGH STREET. 
1908. 
| EIT PEN a RE eT eS 
Adlard and Son, Impr.,] : {London and Dorking. 
