page 58 line of code, change 0.0 to 1.0: glClearColor(1.0, 1.0, 1.0, 1.0);
page 58 second line below code: change 0.0 to 1.0
page 61 9th line from bottom, add comma: default,
page 62 line before last of code, remove extra (: ...gluOrtho2D(GLdouble...
page 63 third line of code, add u: gluOrtho...
page 68 eliminate first line of code (#include <GL/gl.h>)
page 68 third line of code from bottom, add u: gluOrtho2D
page 73 line 3 [Kil94b]
page 75 second line of code, add D: gluOrtho2D...