Electron-Microscopic Examination of Tissues

To obtain a better insight into various fundamental vital processes, for example, the stimulation of nerves and the contraction of muscles, we require a more thorough knowledge of the morphological substratum than can be acquired by the use of visible-light microscopy and various indirect methods for the study of submicroscopic structures. The electron microscope with its great resolving power affords theoretical possibilities of making direct studies of sub-microscopic structures of almost molecular sizes.