On some geometric properties and applications of conformal rational transformations in a plane
A 1912 mathematics thesis by Mary Emma Renich on conformal rational transformations in the plane, submitted at the University of Illinois and printed for academic readers. Thirteen hand-drawn line figures show hyperbolas, circles, axes and labelled points, with dashed construction lines, equation annotations and inked captions — usable as loose geometric diagrams and coordinate-grid marks.












