Author :
Poitras, E ; Kuehni, H ; Skeats, W
Abstract :
Discission of a paper by E. J. Poitras, H. P. Kuehni, and W. F. Skeats published in the February 1935 issue, pages 170–8, and presented for oral discussion at the protective devices session of the summer convention, Ithaca, N. Y., June 26, 1935.