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TEE POPULAR SCIENCE MONTHLY. 



fragments of a hard, blue, unglazed pottery were found ; and these 

 fragments are identical with vessels dug up in various parts of the 

 empire, which are regarded by Japanese archaeologists as being of 

 Corean origin, from nine to twelve hundred years old. 



At the same meeting of the Boston Society of Natural History 

 in which I communicated the results embodied in this paper. Profes- 

 sor F. W. Putnam announced the discovery of chambered mounds in 



Fig. 7.— Showing Arrangement of Stones in Side-wall of Chamber. Len<.'th, 14 feet ; 

 height, 11 feet tj iQches. The dotted line to the right shows roof of passageway. 



America, and communicated the following, which is taken from ad- 

 vance sheets of the " Proceedings " of that Society : 



These chambered mounds are situated in the eastern part of Clay County, 

 Missouri, and form a large group on both sides of the Missouri River. The cham- 

 bers are, in the three opened by Mr. Curtiss, about eight feet square, and from 

 four and a half to five feet high, each chamber having a passageway several feet 

 in length and two in width, leading from the southern side, and opening on the 

 edge of the mound formed by covering the chamber and passageway with earth. 

 The walls of the chambered passages were about two feet thick, vertical, and 

 well made of" stones which were evenly laid, without clay or mortar of any kind. 

 The top of one of the chambers had a covering of large, flat rocks, but the others 

 seem to have been closed over with wood. The chambers were filled with clay 

 which had been burned, and appeared as if it had fallen in from above. The in- 

 side walls of the chambers also showed signs of fire. Under the burned clay, in 

 each chamber, were found the remains of several human skeletons, all of which 

 had been burned to such an extent as to leave but small fragments of the bones, 

 which were mixed with the ashes and charcoal. Mr. Curtiss thought that in 

 one chamber he found the remains of five skeletons and in another thirteen. 

 With these skeletons there were a few flint implements and minute fragments of 

 vessels of clay. , .. 



