< Page:Popular Science Monthly Volume 34.djvu


This page has been proofread, but needs to be validated.
INVENTIONAL GEOMETRY.
365

Fig. 15.
and scientific contributions to school text-book literature ever made. What this little book teaches simply and naturally was

Fig. 16.
This article is issued from Wikisource. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.