Excursion in mathematics
By: by Ernst R. Breslich
Publisher: Newson & Company
Published: 1938
Place of publication: New York
Language: eng
Number of pages: 47
Subjects: Solid Geometry
Notes: Two ortho-scopes in pocket mounted on lining-paper.

"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.