I have a copy of the paper, and will be glad to answer specific questions about it, or type small excerpts or tabulated data from it.
I don't know if it's much use, other than for the historic value. Here's something the authors said:
The tests were done prior to 1960, so those films are over 50 years in the past.Previous work carried out in these Laboratories had shown that the comparative effects of two developers were not the same for all emulsions, which means that it is not possible to generalize with respect to such results. Therefore, tests were carried out on the three Kodak black-and-white emulsions then available for 35mm amateur photography: Kodak Panatomic-X Film, Kodak Plus-X Film, and Kodak Tri-X Film.
Richard Henry also did somewhat similar, more recent tests (mid 1980's), described in Controls in Black-And-White Photography.