Excursion in mathematics /
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| Format: | Book |
| Language: | English |
| Published: |
Chicago :
The Orthovis company,
1938.
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| Subjects: |
| Item Description: | "The book has developed from experiments devised to train pupils in spatial imagination. It aims to supplement and strengthen the teaching of geometry in the secondary school from the seventh grade on."--Author's note. |
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| Physical Description: | 4 preliminary leaves, 47 pages, 1 unnumbered page including frontispiece, illustrations, diagrams ; 23 x 21 cm. |