SECOND ANNOUNCEMENT 54TH PSSL As previously announced, the 54th meeting of the Peripatetic Seminar on Sheaves and Logic will be held over the weekend of the 26th-27th March 1994 at the University of Sussex. As usual, we welcome talks on topics in logic, category theory and related areas. The meeting will be held in Stage I of the Maths and Physics Building, in lecture theatre PB1A6, starting at 9.30 on the Saturday morning. On the Friday evening, from 7.30 to about 10.00 there will be a gathering in the COGS common room in Stage II of the Maths and Physics Building, at which the program for the meeting will be finalised. Light refreshments will be available. Information about travel, local accommodation, participants and talks offered has been placed in the Sussex anonymous ftp archive (ftp.cogs.sussex.ac.uk, subdirectory pub/pssl) and will continue to be updated as necessary. There is also a mailbox pssl@cogs.sussex.ac.uk, specifically for conference mail. If you have problems with arranging travel or accommodation, please feel free to contact us (please note that we have not arranged accommodation for participants, unless specifically requested). We look forward to seeing you in Sussex. The local organizers, Carolyn Brown, Chris Mulvey, Edmund Robinson, Gavin Wraith