G. Thomas Emslie, PhD was the author of the Handbook of Exobiology. (PIC: "Disengage")
The prop book was created by scenic artist Geoffrey Mandel, with creature illustrations by Jim Martin. The cover of the book and the two pages seen in "Strange New World" used to be showcased on Mandel's homepage. [1](X)
The cover of the book, containing the author credit, was first visible onscreen in "Disengage".