A FASCINATING MANUSCRIPT BY AN OFFICER OF THE ENGINEERS, PREDATING THE GREAT SIEGE 1779-83, ONE OF THE MOST MEMORABLE SIEGES OF HISTORY. THE SKETCH POSSIBLY ILLUSTRATES THE USE OF RED-HOT SHOT, FIRST USED ON THE SPANISH ON THE 8TH SEPTEMBER 1782, A TECHNIQUE WHICH WAS LARGELY RESPONSIBLE IN DESTROYING THE ATTACK ON THE 13 AND 14TH, HASTENING THE END OF THE SIEGE IN FEBRUARY 1783. IN THIS ACTION UPWARDS OF 8300 ROUNDS WERE EXPENDED BY THE GARRISON EVEN THOUGH LESS THAN 100 PIECES WERE IN USE