AN ELEMENTARY TREATISE ON TRILINEAR CO-ORDINATES, THE METHOD OF RECIPROCAL POLARS, rman acleed BY THE REV. N. M. FERRERS, D.D., F.R.S. MASTER OF GONVILLE AND CAIUS COLLEGE, HON. LL.D. OF THE UNIVERSITY OF GLASGOW. FOURTH EDITION. London: MACMILLAN AND CO. AND NEW YORK. 1890 [All Rights reserved.] |