suffuses its entire body. Often in bright sunlight this green changes to a rich, dark brown, a color which makes it look so much like a twig as to defy the eye to find it until it moves. Yet I doubt if this change of coloring is so much a matter of protective instinct as we have been taught to believe as it is a matter of temperament and emotion. The animal seems to sleep, fight and run away in pale green. When let alone, unsuspicious and basking in the full sun, this color is changed to the brown, and if you will watch the change take place you will see some interesting variations into golden yellow, slaty gray and even a peppering of white dots on the back. Gentle and lovable as these creatures seem, the males have tiny battles which are quite tempestuous within teapot limits. At such times they protrude queer, inflated neck pouches and bite and thrash about with great agility and vehemence, the combat often ending in the vanquished leaving his twisted-off tail in the mouth of the other while he wishes himself to safety in the crevice of some dead stump. Then the victor struts with the trophy in his mouth, his neck pouch distended and his brightest green showing more vividly than ever.
This loss of the tail does not seem to be a serious matter with chameleons and other small lizards, indeed the appendage seems to be a sort of customary final ransom paid for bodily safety. It
