‎"STEINER, J.‎
‎Sur le maximum et le minimum des figures dans le plan, sur la sphére et dans l'espace en général. Second mémoire.‎

‎(Berlin, G. Reimer, 1842) 4to. As extracted from ""Journal für die reine und angewandte Mathematik, 34 Band, Heft, 1842"". Without wrappers and backstrip. Fine and clean. Pp.189-250.‎

Reference : 47252

‎First printing of Swiss mathematician Steiner's ""outstandingly clear and brilliant exposition"" on the sphere in general (Klein, Development of Mathematics in the 19th Century P 118).""Students and contemporaries wrote of the brilliance of Steiner's geometric research and of the fiery temperament he displayed in leading others into the new territory he had discovered. Having set himself the task of reforming geometry, Steiner sought to discover simple principles from which many seemingly unrelated theorems in the subject could be deduced in a natural way."" (DSB)‎