THE ANALYSIS OF THE SENSATIONS.
Pp. 208. 37 cuts. Cloth, $1.25 net (6s. 6d.).
LAGRANGE, J. L.
LECTURES ON ELEMENTARY MATHEMATICS.
With portrait of the author. Pp. 172. Price, $1.00 net (5s.).
DE MORGAN, AUGUSTUS.
ON THE STUDY AND DIFFICULTIES OF MATHEMATICS.
New Reprint edition with notes. Pp. viii+288. Cloth, $1.25 net (5s.).
ELEMENTARY ILLUSTRATIONS OF THE DIFFERENTIAL AND INTEGRAL CALCULUS.
New reprint edition. Price, $1.00 (5s.).