The question of conservation is an especially important one in the United States today when we find ourselves faced with the possibility of a number of our natural resources giving out, and it is the engineer, whose responsibility it is to convert these materials into forms suitable for use by man, who has a special interest in the problem. This article stresses the urgency of the need for a program of conservation of our natural resources such as recently was endorsed by The Connecticut Technical Council, of which the author is chairman.