I am interested in a version of Scheme that will run on an IBM PC/AT and will allow itself either to be called by a C program or to call a C program. I have a copy of TI Scheme, but nowhere in the documentation does it refer to this issue. Plese send any information by e-mail, or if you can't reach me, feel free to post your answer. I will summarize any findings. Jay Tobias tobias@cs.ucla.edu