CONTENTS 
No. 1 (February). 
PAGE 
Warburton, Cecil. Notes on the Genus Rhipicephalus, with the 
Description of New Species, and the Consideration of some Species 
hitherto described. (With 12 Text-figures) . . . . . 1 
Watson, E. A. and Hadwen, S. Trypanosomes found in Canadian 
Mammals. (With Plates I and II) ...... 21 
Southwell, T. The Ceylon Pearl Inducing Worm. A Brief Review 
of the Work done to date ........ 27 
Christophers, S. R. The Development of Leucocytozoon canis in the 
Tick with a Reference to the Development of Piroplasma. (With 
2 Diagrams) .......... 37 
Schilling-Torgau, Dr V. Bemerkung zu der Arbeit Otto Y. 
Huffman: “The Kurloff-body, a Spurious Parasite”. . . 49 
Nuttall, George H. F. Notes on Ticks. II. (1) New Species 
{Aviblyomma, Haemaphysalis). (2) Ixodes putus : Description of 
the hitherto unknown Larval Stage. (With 9 Text-figures) . 50 
Nuttall, George H. F. Note on Rossiella rossi (Nuttall, 1910) 
occurring in the Jackal in British East Africa . . .61 
Nuttall, George H. F. and Strickland, C. On the Occurrence of 
two Species of Parasites in Equine “ Piroplasmosis ” or “ Biliary 
Fever.” (With Plate III, 8 Diagrams, 1 Text-figure and 5 Charts) 65 
No. 2 (June). 
Strickland, C. Agrippina hona nov. gen. et nov. sp. representing a 
New Family of Gregarines. (With Plate IV and 33 Text-6gures) 97 
Hindle, Edward and Lewis, R. C. Note on “ Crithidia” cleti n. sp., 
Parasitic in the Alimentary Canal of Cletus varius Dali. (With 
17 Text-figures) . . . . . . . . . .109 
