He threw himself upon his back and fairly wallowed at my feet; jumped up and sprang upon me, rolling me upon the ground by his great weight; then wriggling and squirming around me like a playful puppy presenting its back for the petting it craves. I could not resist the ludicrousness of the spectacle, and holding my sides I rocked back and forth in the first laughter which had passed my lips in many days; the first, in fact, since the morning Powell had left camp when his horse, long unused, had precipitately and unexpectedly bucked him off headforemost into a pot of frijoles.

My laughter frightened Woola, his antics ceased and he crawled pitifully toward me, poking his ugly head far into my lap; and then I remembered what laughter signified on Mars⁠—torture, suffering, death. Quieting myself, I rubbed the poor old fellow’s head and back, talked to him for a few minutes, and then in an authoritative tone commanded him to follow me, and arising started for the hills.