BY the death of Dr. Charles Carpenter on September 7 at the age of eighty years, industry loses one of its greatest administrators and applied science one of its staunchest advocates. Trained from his youth as a gas engineer and with an intimate knowledge of gas engineering practice, his delight in precision caused him to realize the value of allying the scientific mode of thought to engineering practice. It was this combination of science and practice which gave the keynote to his technical work. The development of the Metropolitan Argand No. 2 burner was an example of his personal interest in accuracy of detail and the desire to express a quantity so difficult of measurement as illuminating power with the greatest precision possible. It was recognition of the need for closer co-operation between the scientific and the practical man that led him to take so keen an interest in the work of the Society of Chemical Industry, of which he was president in 1915-17, and the dominating theme of both his presidential addresses was the necessity for bringing the often impractical chemist into closer touch with the engineer, whose work was incomplete without the co-operation of a man viewing things from a more academic viewpoint.