Text from Introduction: "This thesis includes a review of the more important literature relating to contagious abortion or infectious abortion that was available, and particularly that dealing with experimental researches ...

From the review of the literature of the lipase content of the blood it appears that no consistent series of determinations have been made through a period of time sufficient to learn under just what conditions the variation ...

Abstract taken from first paragraph of the Introduction section of this thesis: At the present time no biologic test for the diagnosis of hog cholera exists by means of which the presence of the disease in a herd can be ...