The effects on reading speed and comprehension of window proportions and page turning in electronic text were investigated in this study. Subjects--61 undergraduate students at the University of Wisconsin--Whitewater--were administered a standardized reading text displayed as photocopied dot matrix print in simulation of electronic text. There were two levels of window--a single window containing a whole passage or multiple windows of six lines each--and reading took place under restricted or unrestricted page turning conditions. Each subject was asked to read two narrative prose passages and answer nine multiple choice questions on the two passages in 10 minutes. Analysis of the test scores indicated that: (1) there were significant differences in reading speeds for restricted and unrestricted page turning in either window condition, as the freedom to turn back to previous windows had a detrimental effect on speed; (2) the effects of different proportions of window on reading speed and comprehension were not significant; and (3) the multiple windows group tended to comprehend more than the single window group in the restricted page turning condition, and less in the unrestricted page turning condition. A list of 22 references is provided. (MES)