Page:Popular Science Monthly Volume 50.djvu/826

804 being one of the chief grounds. On the whole. Frisky and Winnie are seen to have grown a trifle faster than Tipsy, which would indicate the absence of deleterious ingredients in the wine and

whisky. They were bright, promising puppies to begin with, but they have grown into a sorry-looking lot, as is witnessed by Fig. 13.

After all, the only true physiological expression of the value of an animal's or a man's life is the total amount of energy developed and utilized during its continuance; and while, in order to attain to a proper relation to the energy material around it, it becomes necessary for the animal to develop a certain mechanism of this or that size and form, and with such and such parts, still as little energy as possible is wasted in forming the machine. An animal dead, in the chemical composition of its body, contains but a small fraction of the energy which it is able to utilize during its lifetime, and even the greater part of this is contained in the food from which its body was formed. This fraction, possibly one one-thousandth, whatever it may be, would give us the first adequate expression ever obtained of the relative values of human anatomy to human physiology, of the physical body and the life work.

Thus, in our purely physical and anatomical analysis of the experiment so far, we have studied only this small fraction of the whole life story even of a dog. In going on to the side of