These shouldn't be replaced along with the other mentions of MDL (and
the ITS name should have a space, not a dot).
-------------------------
First, catch your rabbit. Somehow get the interpreter running -- the
-program in the file `SYS:TS.Muddle` in the ITS version or
-`SYS:Muddle.SAV` in the Tenex version or `SYS:Muddle.EXE` in the
+program in the file `SYS:TS MDL` in the ITS version or
+`SYS:MDL.SAV` in the Tenex version or `SYS:MDL.EXE` in the
Tops-20 version. The interpreter will first type out some news
relating to Muddle, if any, then type