Below you will find the final schedule for the Special Session on "Applied Categorical Structures" at the up-coming AMS Meeting in Toronto, Sept. 23&24. There will be a Welcome Party on Friday evening (Sept. 22) - details to be communicated in early September. Note specifically that the program on Sunday afternoon continues until 5 pm rather than until 4pm as previously announced. For comprehensive and continually updated meeting and program information, including accommodation in Toronto, see http://www.ams.org/meetings/ Hotel accomodation in Toronto during the month of September can be very tight. In fact, the deadlines for making bookings in the two AMS-recommended hotels in Toronto are approaching rapidly. These are: "Courtyard by Marriott", 475 Yonge St., (416) 924-0611, $182 (Can.) for single or double by August 1; "Days Inn", 30 Carlton St., (416) 977-6655 or (800) 325-2525, $139 (Can.) for single or double by August 23. As an alternative to the Days Inn (same price or lower, 15 min walk to conference site) you may want to try the following smaller downtown hotel, which we have used for vistors in the past: Howard Johnson Inn, 89 Avenue Road, (416) 964-1220 or (800) 446 4656. We look forward to seeing you in Toronto. Joan Wick Pelletier Walter Tholen Saturday, Sept. 23: 9:00 Andre Joyal 3:00 Stephen Awodey 9:30 Myles Tierney 3:30 Lars Birkedal 10:00 Jack Duskin 4:00 David Benson 10:30 Marco Grandis 4:30 John MacDonald 11:00 Enrico Vitale 5:00 Richard Wood Sunday, Sept. 24: 9:00 Marta Bunge 2:00 Joachim Lambek 9:30 Michael Makkai 2:30 James Madden 10:00 Robin Cockett 3:00 Gloria Tashjian 10:30 M. M. Mawanda 3:30 Robert Pare 11:00 F. William Lawvere 4:00 Jiri Rosicky 4:30 F. J. O. Souza All talks are 25 minutes long. The titles follow. The full abstracts may be seen at the web site cited above. Abstract # Title Authors Date Received 957-18-265 On the pivotal, symmetric case of involutory Hopf 13-jul-2000 objects. Fernando J. O. Souza*, fernando@math.uic.edu 957-18-235 Higher category theory. 12-jul-2000 Andre Joyal*, joyal@math.uqam.ca 957-06-218 Injective hulls of partially ordered monoids. 12-jul-2000 J. Lambek* 957-18-214 Modelling a sketch in an object in a 2-category. 11-jul-2000 Michael Johnson, mike@ics.mq.edu.au Robert Rosebrugh, rrosebru@mta.ca R. J. Wood*, rjwood@mathstat.dal.ca 957-18-204 Open problems on finiteness and their counting 11-jul-2000 measures. Mbila-Mambu Mawanda*, mm.mawanda@nul.ls 957-18-199 Monoreflections in categories of ordered rings. 10-jul-2000 James J Madden*, madden@math.lsu.edu 957-18-198 Nerves of Bicategories: Morphisms and Simplicial 10-jul-2000 Maps. John W Duskin*, duskin@math.buffalo.edu 957-18-157 A summary report on the state of our knowledge of 05-jul-2000 weak higher dimensional categories. Michael Makkai*, makkai@math.mcgill.ca 957-18-140 Dominances and Spread Completions. 04-jul-2000 Marta C Bunge*, bunge@math.mcgill.ca 957-18-132 Finitely productive classes of uniform spaces 03-jul-2000 which generate cartesian-closed categories. Gloria Tashjian* 957-68-123 Certain spans of sketches model problems of 29-jun-2000 complexity NP. David B Benson*, dbenson@eecs.wsu.edu 957-18-107 Flat covers and factorizations. 27-jun-2000 Jiri Rosicky*, rosicky@math.muni.cz 957-18-90 Free Double Categories and the Word Problem for 25-jun-2000 Groups. Robert Par\'e*, pare@mscs.dal.ca Robert MacG. Dawson, rdawson@husky1.stmarys.ca 957-18-77 A higher dimensional homotopy sequence. 22-jun-2000 Marco Grandis, grandis@dima.unige.it Enrico Vitale*, vitale@agel.ucl.ac.be 957-18-76 Some absolute pullbacks and pushouts in 22-jun-2000 $\boldsymbol{\Delta}$. Myles Tierney*, tierney@math.rutgers.edu 957-18-61 Monads and Structure. 16-jun-2000 John L. MacDonald*, johnm@math.ubc.ca 957-18-59 Relating realizability using sheaves. 16-jun-2000 Steve Awodey*, awodey@cmu.edu Andrej Bauer Dana S Scott 957-03-51 Relative and Modified Relative Realizability. 13-jun-2000 Lars Birkedal*, birkedal@itu.dk Jaap van Oosten, jvoosten@math.uu.nl 957-18-39 Higher fundamental functors in some categories of 07-jun-2000 presheaves. Marco Grandis*, grandis@dima.unige.it 957-18-30 Game theory revisited: categorical proof theories 31-may-2000 for games. J. Robin B. Cockett*, robin@cpsc.ucalgary.ca 957-18-19 Toposes and Continuum Microphysics. 22-may-2000 F. William Lawvere*, wlawvere@acsu.buffalo.