JOURNAL OF THE ROYAL MICROSCOPICAL SOCIETY. 
SEPTEMBER, 192S. 
CONTENTS. 
TRANSACTIONS OF THE SOCIETY. 
PAGE 
VIII. — The Gametogenesis of Nepa Cinerea (Water Scorpion). 
ByE. A. Spaul, B. Sc., Department of Zoology, Birkbeck 
College, University of London. (Two Plates) . . . . 237 
IX. — A Low-Power Eye-Piece with Large Field. By H. 
Hartridge, M.D., Sc.D., F.R.M.S., Fellow of King’s 
College, Cambridge. (One Text-Figure) 243 
X. — The Use of the Microscope in the Rubber Industry 
(Eastern Plantations). By Herbert Sutcliffe, 
A.R.C.Sc., F.L.S., F.R.M.S. (Two Plates) 245 
XI. — The Microscope in the Paper-Mill. By James 
Strachan, F.Inst.P., F.R.M.S 249 
XII. — The Use of the Microscope in the Brewing Industry. 
By A. Chaston Chapman, Pres.I.C., F.R.S., F.R.M.S. 261 
XIII. — An Application of Polarized Light to Resolution 
with the Compound Microscope. By Dan M. 
Stump, B.S., M.E., F.R.M.S. (One Plate) 264 
XIV. — The Plunger Pipette — A New Instrument for 
Isolating Minute Organisms. By Prof. A. Brooker 
Klugh, Biological Dept., Queen’s University, Kingston, 
Canada. (One Text-Figure) 267 
OBITUARY. 
William Carruthers, Ph.D., F.R.S., F.L.S., F.G.S. (With Portrait) 269 
[ For continuation of Contents see page 7. 
SPECIAL NOTICES. 
SESSION 1922-23 . — For Programme of Papers, etc., see following 
pages. 
A CONVERSAZIONE will be held on Wednesday, October 11, 
1922, from 7.30 to 10.30 p.m., at the Examination Hall, 8-11 
Queen Square, Bloomsbury, London, W.C.l. (Nearest Stations : 
Holborn and Russell Square.) 
Reception by the President, Professor Frederic J. Cheshire, 
C.B.E., F.Inst.P., from 7.45 to 8.15 p.m. 
The Council of the Society is most desirous of securing the 
co-operation of Fellows and others who can contribute to the success 
of the Conversazione, and those who are willing to provide Exhibits 
of any kind having relation to the Microscope and microscopic 
organisms and structures are asked to notify the Secretary as early 
as possible. 
THE TRADE DIRECTORY AND INDEX TO ADVERTISERS will be found 
on page 15. 
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