B.c. is known to be transmitted under natural conditions by H.I., Rhipicephalus sanguineus and Dermacentor reticulatus[Dermacentor pictus], and experimentally by D. andersoni. A dog which had passed through infections with strains from Morocco and France transmitted by Rh.s. and D.r. succumbed to...

This comprehensive memoir should be consulted in the original by all those who desire to obtain succinct information upon the facts hitherto ascertained with regard to piroplasms in cattle. It is not possible to do more than review the most recent knowledge and essential points in the course of an...

The author describes his discovery of Brazilian spirochaetosis while engaged in France in studying the biology and pathogenicity of cattle ticks originally obtained from Brazil in 1915. These ticks, which had been collected from apparently healthy slaughterhouse cattle, produced thousands of...

LOUNSBURY (1901) showed that the tick Haemaphysalis leachi, in West Africa, was capable of transmitting the disease known as malignant jaundice in the dog, caused by a piroplasm morphologically identical with P. canis of PIAÑA and GALLI-VALERIO (1895), the cause of haemoglobinuria of dogs in...