Graphics subroutine library callable from FORTRAN

[EDGAR GORRES]

Hello,
    I was wondering if anybody out there knows of a simple graphics
subroutine library for the PC that can be CALLed from programs written
in MS-FORTRAN.  I need to draw only dots and lines in different colors
(or different styles for a monochrome terminal).  Are there any graphics
packages available in the public domain?
    Thank you in advance for your help - I appreciate it.  Please mail
reponses directly to EGORRES at vx1.gba.nyu.edu.

- Edgar Gorres