The perception of horizontal and of vertical lines
By: by Professor B.O. Peirce.
Publisher: s.n.
Published: 1899
Place of publication: [United States?
Language: eng
Subjects: Optics.
Notes: From cover: "Reprinted from Science, N.S., Vol.X., No.248, Pages 425-430, September 29, 1899".

Title from cover.