Franklin watched the controversy with deep interest and no small anxiety. As the argument grew heated he could no longer hold his hand; he cast into the Canadian scale an able pamphlet, ingenuous in the main if not in all the details. It is not worth while to rehearse what he had to say upon mercantile points, or even concerning the future growth of a great American empire. What he had really to encounter was the argument that it was sound policy to leave Canada in possession of the French. Those who pretended to want Guadaloupe did not so much really want it as they did wish to have Canada remain French. To make good this latter point they had to show, first, that French ownership involved no serious danger to the English possessions; second, that it brought positive advantages. To the first proposition they said that the French had fully learned their lesson of inferiority, and that a few forts on the frontier would easily overawe the hostile Indians. To the second proposition, they elaborated the arguments of William Burke. Franklin replied that the war-parties of braves would easily pass by the forts in the forests, and after burning, pillaging, murdering, and scalping, would equally easily and safely return. Nothing save a Chinese wall the whole length of the western frontier would suffice for protection against savages. Then, with one of those happy illustrations of which he was a master, he said: "In short, long experience has taught our planters that they cannot rely upon forts as a security against Indians; the inhabitants of Hackney might as well rely upon the Tower of London, to secure them against highwaymen and house-breakers." The admirable simile could neither be answered nor forgotten. Concerning the positive desirability of leaving the French as masters of Canada to "check" the growth of the colonies, Franklin indignantly exclaimed: "It is a modest word, this '_check_' for massacring men, women, and children!" If Canada is to be "restored on this principle, ... will not this be telling the French in plain terms, that the horrid barbarisms they perpetrate with Indians on our colonists are agreeable to us; and that they need not apprehend the resentment of a government with whose views they so happily concur." But he had the audacity to say that he was abundantly certain that the mother country could never have any occasion to dread the power of the colonies. He said:--