Moreover, obedience and humility of the kind required by the ordinance of baptism is demanded also in the daily walk of life. A young man in a chemical obedience in laboratory attempted one day, by a process of electro-plating, to put a new covering of yellow gold over his watch case. He prepared very carefully the solution of gold-leaf in aqua regia; he built up an excellent voltaic battery; he made all the connections close and secure; and he cleaned carefully the old watchcase that the new gold might be deposited upon it evenly and smoothly. Then in the evening, when everything was in readiness, he suspended the case properly in the gold solution, closed the circuit, and went home, hoping to find his watch case in the morning with a beautiful new coating of yellow gold ready to polish. But when he entered the laboratory the next morning, and went to examine his electro-plating, he found to his horror that his watch case was as black as coal. What had happened? Everything was as he had left it the evening before. So far as he could tell there was no reason why his experiment should not have been successful. Then he resorted to his books again. After patient searching, in the volumes on his desk, he arose a wiser and a more careful man. He had overlooked one requirement of the law. In the process of electro-plating, he remembered now, the gold is deposited in its usual yellow form only when the gold solution is warm. When the electric current is {133} passed through a cold solution, the gold is deposited in an unusual black form. The young chemist had learned that obedience is better than sacrifice. [Sidenote: The example set by Jesus.]