Transactions of The Academy of Science of St. Louis. | 
VOL. VI. No. 8. 
-GEOMETRICAL CONSTRUCTIONS FOR CUTTING 
FROM A CONE OF REVOLUTION 
PLANE SECTIONS 
(a) OF GIVEN ECCENTRICITY, 
(b) OF GIVEN LATUS RECTUM. 
EDMUND A. ENGLER. 
Issued May 10, 1893. 
