%0 Journal Article %A Drake, Stillman %T The origins of the infinitesimal calculus, by Margaret E. Baron, viii+304 pages. Oxford Univ. Press, New York; Pergamon Press, New York, 1969. $13. %J Canadian mathematical bulletin %D 1972 %P 166-168 %V 15 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S000843950003143X/ %R 10.1017/S000843950003143X %F 10_1017_S000843950003143X