Prevalence rates of the developing and adult pancreatic fluke were determined in a field study in Kuala Lumpur. The land snail Bradybaena similaris (first intermediate host) had a natural infection rate approximating 6% of 2, 114 examined. In the grasshopper Conocephalus maculatus 3.8% of 1, 036...

A comprehensive report of large-scale trials of hexachloroethane in Texas. The author's suspension of hexachloroethane 500 g., bentonite 50 g., and water about 750 ml., sufficient to make a total volume of one 1. was used. The dose of this suspension for adult cattle was 200 ml. containing 100 g....

A nation-wide survey was made of the most important parasites of food-producing animals and of the best methods of controlling them Bovine trichomoniasis" is increasing in incidence and has been reported front all parts of the U.S.A. No satisfactory treatment has been developed. Artificial...

Following a recommendation of the 1940 committee, a start had been made on a survey of the occurrence and importance of parasites of the various species of domestic and wild animals in the U.S.A. and Canada.
In Canada, copper sulfate and nicotine sulfate mixture remained the most popular worm...

The normal activities of the bureau continued to function satisfactorily; the U.S.A. remained free from major epizootics throughout the year. There were 4, 428 regular civil service employees and of these 2, 081 were in the professional and scientific service, 93% being veterinarians. Expenditure...