The water, regarded still by the superstitious Indians as fathomless, is at present thirty feet deep, but was probably deeper once. The dredging operations have disclosed the bottom of the cenote to be an accumulation of earth and vegetable refuse, into which Mr. Thompson has been able to probe to the depth of over thirty feet. These investigations have once and for all established the fact that the pool was the scene of countless human sacrifices. The quantity of skulls and bones brought up by the dredger admits of no other explanation. For if it was urged, as it may be, that such "finds" point possibly to the cenote having been put to a sepulchral use, the answer is provided by the character of the skulls and bones. In a pool which was regarded in the light of a national Valhalla the majority of the skeletons would almost certainly be those of men, and men, too, of advanced age, chiefs and war-worn tribal heroes. But this is not the case. With scarcely any exceptions, the bones are those of the young. We were privileged by the courtesy of Mr. Thompson to see and handle many of the skulls, and our examination of them satisfied us that they were one and all those of young females between twelve and sixteen years of age. The disarticulated bones all exhibited a like immaturity and sex. From these facts only one deduction is possible, namely that sacrifices in the cenote did occur, and that such sacrifices were of young girls who were hurled by the priests into the chasm, possibly after defilement by the high-priests in the small building at the pool's edge, thus symbolising the simultaneous surrender of virginity and life to the Rain Deity. It is of course impossible to say for how many centuries before the Spanish Conquest this practice prevailed, but allowing for the natural tendency of the bodies to entirely decay during anything like such a vast period as some writers would suggest is represented by the life of Chichen as a city, the quantity of skulls found in fair preservation seems to indicate a comparatively frequent repetition of this cruel rite; probably many maids each dry season. These grim mementoes of the pagan past are not the only "finds" the cenote has yielded. While the dredging has more than corroborated Bishop Landa's supposition that the mineral poverty of Yucatan forbade the hope that countless ounces of gold and silver lay hidden in the pool's muddy bottom, many archæological treasures have been recovered. There is much reason to believe that, aided by these, Mr. Thompson will be able to give the world an absorbingly interesting reconstruction of pre-Conquest life in Chichen, pieced together with that painstaking zeal which has distinguished all his previous work in other parts of Yucatan.