Caloric equivalents of gained or lost weight.

W HAT 15 the caloric equivalent of one pound of body weight, gained or lost ? To put the question in other words : How many cabnies in excess of the amount necessary to mriaintam caloric equilibrium will produce a gain of one pound of body weight ; conversely, what caloric deficit will determine a loss of one pound of body weight? It is strange that a marked diversity of opinion exists among authorities on this subject. In this article an attempt will be made to clarify the matter.