WHEN our Civil and Military Engineering Examinations are daily making larger demands for geometrical proficiency a new and exceedingly lucid Note-book on Descriptive Geometry comes well-timed. Though ...

THANKS to Messrs. Kempe, Hart, and other writers on Linkages, we are able “Curvo dignoscere rectum,” and “Parallels design Sure as Demoivre” could. The title of the work before us shows that it is not ...