A large part of his attention from 1889 onward was occupied by experiments in cooking and diet, culminating in an invention of his own called “The Aladdin Oven.” This led him into investigations as to the cost of nutrition in different countries, on which subject he also wrote pamphlets. He soon was led into experiments so daring that he claimed to have proved it possible to cook with it, in open air, a five-course dinner for ten persons, and gave illustrations of this at outdoor entertainments. He claimed that good nutrition could be had for $ per week, and that a family of five, by moderate management, could be comfortably supported on $i 80 per year (Boston Herald, October 8, 1891). These surprising figures unfortunately created among the