
George Vasey
(1822 - 1893)
George Vasey classified laughter according to five types: “1. The giggling laugh, excited by romping fun and nonsense; 2. The hearty laugh, instigated by practical jokes or extremely absurd antics; 3. The full faced laugh of the weaker sex; 4. The boisterous laugh of the stronger sex; 5. The ne plus ultra laugh, which may be variously denominated as the obstreperous laugh—the vociferous laugh—the stentorian laugh—or the horse laugh.”