First Announcement April 22, 1998 SMOOTH CATEGORIES IN GEOMETRY AND MECHANICS Special session of AMS Meeting No. 943 in Buffalo, N.Y. April 24/25, 1999 The intended subject of the session includes (a) the application of extensive categories, regular categories, cartesian-closed categories, toposes and the like to differential geometry, functional analysis of smooth functions and differential forms, distributions and currents, the motion and heating of extended bodies, electro-magnetism,... as well as (b) the formulation and explanation of problems in those fields to which such application would possibly be useful. To facilitate the organizing process, please send (1) an indication of interest in participation, as soon as possible (2) a preliminary abstract by September 1, 1998 (The AMS will require an abstract later in the fall.) F. William Lawvere, Organizer Mathematics Department SUNY AT BUFFALO 106, Diefendorf Hall Buffalo, N.Y. 14214, USA wlawvere@acsu.buffalo.edu