Playfair
/ˈpleɪfeə/- Playfair, John (1748-1819), Scottish mathematician and geologist. A friend of James Hutton, he summarized the latter's views for a wider readership in his Illustrations of the Huttonian Theory of the Earth (1802).普莱费尔, 约翰（1748-1819, 苏格兰数学家、地质学家; 詹姆斯·赫顿的朋友, 他在其《赫顿地球学说例解》[1802]一书中概括了赫顿的观点以飨更多的读者）。