The Math Pony (May, 1934)
The Math Pony
A Dictionary of Numbers
Multiplication reduced to Additionâ€” Division to Subtraction.
Has multiplied for you all products from 1 to 10,000. More accurate than a slide ruleâ€”simpler than a “log” tableâ€”easier to use than either. Save mental effort, eliminate multiplication errors, and conserve time. Never can become obsolete. Pays for itself in a few hours of use.
90,000 productsâ€”212 pagesâ€”sewed bindingâ€”opens flat. HEAVY PAPER COVER $1.00. ART FABRIKOID COVER (semiflexible) $1.50
THE MATH PONY PUBLISHING CO. Box 1810-B. Milwaukee. Wis.