On the basis of 35.392 necropsies, 270 cases of acute "tryptic" pancreatitis with severity degrees II and III, are compared with regards to frequency, sex- and age distribution, and etiology. The frequency of complications in our own cases, is compared with current literature. The average survival time was 13 days. With regard to the most favourable time for partial resection of the pancreas (-necrosis), the period during the 5th to 7th day of illness, is suggested. The most common cause of death was, shock and intoxication.