Counting and measuring
By: by H. von Helmholtz ; translated by Charlotte Lowe Bryan, A.M. ; with an introduction and notes by Harold T. Davis ...
Contributors: Bryan, Charlotte Lowe, 1867-1948.; Davis, Harold Thayer, 1892- ed.
Publisher: D. Van Nostrand co
Published: 1930
Place of publication: New York
Language: eng
Number of pages: 39
Subjects: Mathematics -- Philosophy