THIS PAGE DOCUMENTS FOUR BUGS PRESENT IN THE ORIGINAL PDP-10 FORTRAN SOURCE OF COLOSSAL CAVE ADVENTURE - SPECIFICALLY THE ADV350-PDP10 RELEASE, THE DEFINITIVE 350-POINT VERSION AUTHORED BY WILL CROWTHER AND DON WOODS IN 1977. ALL ANALYSIS IS BASED DIRECTLY ON ADVENT.FOR FROM THAT RELEASE. NO DERIVATIVE PORT OR REIMPLEMENTATION HAS BEEN CONSULTED. LINE NUMBER REFERENCES ARE TO THAT SOURCE FILE.