Geometry and collineation groups of the finite projective plane PG (2,2²)
A 1910 doctoral dissertation in projective geometry by Ulysses Grant Mitchell, printed at Lawrence, Kansas, for mathematicians working on finite planes and collineation groups. The plates are line diagrams: triangles crossed by straight and dashed lines, with labelled nodes carrying coordinate triples or numerals, useful as sparse geometric linework, node-and-line network motifs, and technical annotation styles.
