Changes in the morphological composition of the blood during congestion

One of the main works of my late teacher, Professor V.A.Manassein, relates to the study of changes in blood during experimental fever. The data of this work are still cited in monographs on this issue. Vyacheslav Avksentievich, one of the first Russian doctors, worked on the study of morphological changes in blood in various pathological conditions and, sending me to work abroad, he strongly recommended that I pay special attention to this department of pathology and the clinic. Wishing to mark the memory of my teacher in some way, I allow myself in this small work to report the results of my clinic's research on the morphology of blood in cardiac patients during the period of disturbance of the compensation of cardiac activity.