1

A

TREATISE

ON

Descriptive Geometry,

FOR THE USE OF THE

CADETS OF THE UNITED STATES

MILITARY ACADEMY.

BY C. CROZET,

PROFESSOR OF ENGINEERING IN THE ACADEMY.

PART I. ✓

CONTAINING THE ELEMENTARY PRINCIPLES OF DESCRIPTIVE
GEOMETRY, AND ITS APPLICATION TO SPHERICS

AND CONIC SECTIONS.

New-York:

PUBLISHED By a. t. goodrich and co. 124, BROADWAY,

CORNER OF CEDAR-STREET, OPPOSITE THE CITY HOTEL.

Wm. Grattan, Printer, 8, Thames-street.