A previous report defined a series of 14 novel measures for determining the comprehensibility of English text on the basis of current psycholinguistic and Structure-of-Intellect concepts. That report not only suggested the potential usefulness of the measures but also conjectured about the feasibility of automating the calculation of these measures. The current report builds upon the prior work and takes the next logical steps in implementing these measures for computer application. First, the measures are analytically defined and described. Then, selected measures are investigated using various Air Force manuals and texts. The results of these experiments are presented. An automatic calculation method is then developed for each of the 13 selected measures. The structure of the programing specifications is modular and is intended to calculate the measures for blocks of text of variable size. Flow charts and summary descriptions of the program attributes are also presented, together with explanations of run-request syntax, sample measures calculations, and output formats. (Author/AA)