Ketchum's lessons on the eye
Subtitle: dedicated to the "world of optometry" and especially to those who have sacrificed their time and energy to the end that the word "optometrist" may be honored by all other professions ...
By: edited ... by Marshall B. Ketchum.
Publisher: Ketchum
Published: 1920
Place of publication: Los Angeles
Language: eng
Number of pages: 89
Subjects: Eye.; Eye -- Diseases.; Optometry -- Handbooks, manuals, etc.
Other titles: Lessons on the eye.