Each adult Martian female brings forth about thirteen eggs each year, and those which meet the size, weight, and specific gravity tests are hidden in the recesses of some subterranean vault where the temperature is too low for incubation. Every year these eggs are carefully examined by a council of twenty chieftains, and all but about one hundred of the most perfect are destroyed out of each yearly supply. At the end of five years about five hundred almost perfect eggs have been chosen from the thousands brought forth. These are then placed in the almost airtight incubators to be hatched by the sun’s rays after a period of another five years. The hatching which we had witnessed today was a fairly representative event of its kind, all but about one percent of the eggs hatching in two days. If the remaining eggs ever hatched we knew nothing of the fate of the little Martians. They were not wanted, as their offspring might inherit and transmit the tendency to prolonged incubation, and thus upset the system which has maintained for ages and which permits the adult Martians to figure the proper time for return to the incubators, almost to an hour.