The Internal Structure of Certain Bacteria as Revealed by the Electron Microscope—A Contribution to the Study of the Bacterial Nucleus

Abstract

The problem of the existence of a nucleus in the bacterial cell has aroused considerable interest among biologists and has been the subject of numerous investigations. A study of the literature (Knaysi, 1938, 1942a, Delaporte, 1939-1940, Lewis, 1941) shows that the methods used are various and in some cases ingenious, and that advantage has been taken of developments in other fields of