CONTENTS 
{All rights reserved) 
PAGE 
Nuttall, George H. F. Notes on Ticks. I. (1) Ixodes cale- 
donicus, Description of Male, together with Considerations 
Regarding the Structure of the Foot in Male Ixodes. 
(2) Types of Parasitism in Ticks, illustrated by a Diagram, 
together with some Remarks upon Longevity in Ticks. 
(3) Regarding the Loss of Life in Ticks occurring on 
Wandering Hosts. (2 Figures) . . . . . . 175 
Hindle, Edward. The Relapsing Fever of Tropical Africa. 
A Review. (With 2 Maps and 1 Chart) .... 183 
Wells, R. T. Aerial Contamination as a Fallacy in the Study 
of Amoebic Infections by Cultural Methods. (With Plate VI) 204 
McCoy, George W. A Microfilaria (il/t’crq/iZarm rosenaui n. sp.) 
from the California Ground Squirrel (Citellus beecheyi). 
(With Plate VII).220 
Strickland, C. Description of a Herpetomonas Parasitic in the 
Alimentary Tract of the Common Green-bottle Fly, Lucilia sp. 
(With Plates VIII and IX and 2 Text-figures) . . . 222 
Porter, Annie. The Structure and Life History of Crithidia 
pidicis, n. sp.. Parasitic in the Alimentary Tract of the 
Human Flea, Pulex irritans. (With Plate X) . . . 237 
Acton, Hugh W. and Harvey, W. F. The Nature and 
Specificity of Negri Bodies. (WTth Plate XI and 2 Text- 
figures) ........... 255 
Wenyon, C. M. Oriental Sore in Bagdad, together with 
Observations on a Gregarine in Stegomyia fasciata, the 
Haemogregarine of Dogs and the Flagellates of House Flies. 
(With Plates XII-XVI and 36 Text-figures) .... 273 
PARASITOLOGY will be published about four times a year. The 
numbers will afterwards be issued in volumes each containing four numbers 
and amounting to between 400 and 500 pages, with plates and figures. 
Volumes I, II and III (1908-10) are now ready. In four parts, paper 
covers, 21s. net per volume. Bound in buckram, 25s. net per volume. 
Papers for publication should be sent to Professor Geo. H. F. 
Nuttall, F.R.S., 3 Cranmer Road, Cambridge, or to the Associate Editor. 
Other communications should be addressed to the University Press, 
Cambridge. 
Papers forwarded to the Editors for publication are understood to be 
offered to PARASITOLOGY alone, unless the contrary is stated. 
Contributors receive fifty copies of their papers free. Additional copies, 
not exceeding 200, may be had at cost price : these should be ordered when 
the final proof is returned. 
The subscription price is £1. Is. per volume (post-free), payable in 
advance; single numbers 7s. net (double number 14s. net). Subscribers to the 
Journal of Hygiene may obtain single numbers of PARASITOLOGY at the 
reduced price of 5s. net, or may become subscribers at the reduced rate of 
15s. per volume. Subscriptions may be sent to any Bookseller, or to 
Mr C. F. clay. Manager, Cambridge University Press, Fetter Lane, 
London, E.C. 
CAMBKIDGE ; PBINTED BY JOHN CLAY, M.A. AT THE UNIVEESITY PRESS. 
