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Contents 
vi 1 
No. 4 (November) 
Portrait-plates VIII—XI: 'Edward Jenner, Richard Owen, 
Athanasius Kircher, Robert Boyle 
Boulenger, C. L. On some Nematode Parasites of the Camel in 
India. (With 3 Text-figures) ....... 
Boulenger, C. L. Strongylid Parasites of Horses in the Punjab. 
(With 5 Text-figures) ........ 
Cunliffe, N. Some Observations on the Biology and Structure 
of Ornithodorus moubata , Murray. Together with a Note on 
the External Characters which serve to differentiate the Sexes 
by G. H. F. Nuttall. (With Plate XVI and 5 Text-figures) . 
MacGregor, Malcolm E. The Influence of the Hydrogen-Ion 
Concentration in the Development of Mosquito Larvae. Pre¬ 
liminary Contribution ........ 
Duke, H. Lyndhurst. On the Zoological Status of the Poly¬ 
morphic Mammalian Trypanosomes of Africa and their Re¬ 
lation to Man. (With 1 Text-figure) . 
Nuttall, George H. F. Notes bearing on Leeuwenhoek, Redi, 
Linnaeus, de Geer, Rudolphi, Muller, Leidy, Owen, Jenner, 
Kircher and Boyle, whose portraits have appeared in Para¬ 
sitology, Vol. xiii. (Portrait-plates I—XI) . . 
Index of Authors. 
Index of Subjects. 
PAGE 
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348 
352 
398 
408 
410 
