Top 50 words repeated twice, next 100 once, plus phrases. These include conduction and excitation in nerve fibers, chemical and electrical signalling between excitable cells, and excitation-contraction coupling. Considering the breadth of his contributions and the well over 500 publications describing many of them, it is diffi- cult within an introductory paragraph or two to select what may be considered the overriding contributions. Initially his interpretation of current- ciamp data led to the proposal that cell membranes are a composite of two types of membranes, electrically excitable and electrically inexcitable. This concept of the bounding membrane was incorporated into moclels to describe synaptic, secretory, and contractile signalling processes.
Examples are the tubular sys- tem in muscle and synaptosomal fraction of nerve cells.
Gertrude had four children, three boys and one girt, before coming to this country in September 1913. The parents emphasized the value of a higher education and consequently both brothers became medical doctors and his sister a biologist. In January 1926 he married Rose Danzig, who became recognized as a fine artist and sculptress. They had one chilcI, slaughter Brooke, who maintained the family tradi- tion, receiving her Ph.D. degree in anthropology. Here he laid the foundation for the classical studies with H. S. Gasser by publishing several papers on the excitatory properties of nerve bundles and their compound action potentials.