THE CULTIVATION OF LENS EPITHELIUM IN VITRO.

1. Differentiation of the posterior cells of the lens vesicle into lens cortex has been observed in vitro. 2.

AN EXPERIMENTAL GLOMERULAR LESION CAUSED BY VENOM (CROTALUS ADAMANTEUS).

The venom of Crotalus adamanteus when administered intravenously to rabbits in properly graded doses causes lesions of the glomerulus of tile kidney which may be either hemorrhagic or exudative in character. Both types of lesion are usually associated but either one or the other may predominate. The hemorrhagic lesion, which may be confined to the glomerular tuft, or, by rupture of the latter, may involve the capsular space, is a peculiar localization of the hemorrhage so common in other parts of the body in venom intoxication.

AN EXPERIMENTAL STUDY OF THE INFLUENCE OF KIDNEY EXTRACTS AND OF THE SERUM OF ANIMALS WITH RENAL LESIONS UPON THE BLOOD PRESSURE.

1. Extracts of the rabbit's kidney injected into the rabbit cause a slight, increase in blood pressure which is barely more than that due to the mechanical effect of the injection. 2.

CONCERNING THE RELATION OF THE COAGULATION TIME OF THE BLOOD TO THROMBOSIS IN PHLEBITIS.

Positive results have been obtained in but a single set of experiments, namely those in which turpentine was employed. In so far as the results of this preliminary study go, one is led to the conclusion that thrombosis is most readily induced when active inflammatory lesions exist in the blood vessels, associated, probably in most instances, with secondary degenerative changes. Purely mechanical lesions are much less apt to be productive of conditions favorable to thrombosis as a sequence of phlebitis.