The date of another invention, if, indeed, it deserves so respectable a title, is also fixed by this royal visit.

Mesmer had recently begun to astonish or bewilder the Parisians with his theory of animal magnetism; and Gustavus spent some time in discussing the question with him, and seems for a moment to have flattered himself that he comprehended his principles.

But the only durable result which arose from his stay in France was the sincere regard and esteem which he and the queen mutually conceived for each other.

They established a correspondence, in which Marie Antoinette repeatedly showed her eagerness to gratify his wishes and to attend to his recommendations; and when, at a later period, unexpected troubles fell on her and her husband, there was no one whom their troubles inspired with greater eagerness to serve them than Gustavus, whose last projects, before he fell by the hand of an assassin, were directed to their deliverance from the dangers which, though neither he nor they were as yet fully alive to their magnitude, were on the point of overwhelming them..