necessary for the perfection of the rubber, and the exact length of time required for the heating.
He made this discovery in his darkest days; when, in fact, he was in constant danger of arrest for debt, having already been a frequent inmate of the debtor's prison. He was in the depths of bitter poverty, and in such feeble health that he was constantly haunted by the fear of dying before he had perfected his discovery—before he had fulfilled his mission. His poverty was a greater drawback to him than ever before. He needed an apparatus for producing a high and uniform heat for his experiments, and he was unable to obtain it. He used to bake his compound in his wife's bread oven, and steam it over the spout of her tea-kettle, and to press the kitchen fire into his service as far as it would go. When this failed, he would go to the shops in the vicinity of Woburn, and beg to be allowed to use the ovens and boilers after working hours were over. The workmen regarded him as a lunatic, but were too good-natured to deny him the request. Finally, he induced a bricklayer to make him an oven, and paid him in mason's aprons of India-rubber. The oven was a failure. Sometimes it would turn out pieces of perfectly vulcanized cloth, and again the goods would be charred and ruined. Goodyear was in despair.