Thank you for your letter of 27 February. The original purpose of our APL font and macros was to solve the immediate problem of writing documents with APL code. Therefore, they are free for anyone who finds them useful. Some people have requested the font and we have sent them the files appended below (with CMAPL10 and two conversion programs for downloading pixel files, not given here). Further, we have nothing against giving our net address to the users because it would be useful to hear about extensions made to the system. The files APLDEF.TEX and TUGBOAT.TEX are identical with the second versions sent to you (via BITNET) except for minimal changes (there are some corrections and extensions in APLDEF.TEX, and in TUGBOAT.TEX one APL line was corrected.) We think the files are in a "final" form (at least we are not planning any changes). Our original purpose was to publish the second version, but the only difference was really the removal of the tilde space character (this resulted in more complex 1-character macros, but the user cannot see any difference; moreover, TeX runs only about 14% slower). Thus, we feel that there is no reason to publish a list of errata in TUGboat, because any user would inevitably have to use the new version (the old one has not been released). We are adding a file containing sample examples on the use of the APL mnemonics. Aarno Hohti