68 IN LOWER FLORIDA WILDS 



seem to be bone implements, some of them made 

 for purposes that he cannot even guess. 



There are other low mounds in this region made 

 of earth with a slight admixture of shells. There 

 are also long, straight canals cut through what 

 are now mangrove forests, some of which contain 

 water and are more or less navigable for canoes. 

 Sometimes a layer of shells alternates with one of 

 soil, as though the mound had been inhabited and 

 built up for a certain time and then abandoned. 

 Whether the same tribe returned after long ab- 

 sence or another came we do not know. In some 

 of the mounds the pottery of the upper layers is 

 of a finer quality and more artistically finished 

 than that from below; this conveys the idea that 

 the growth of the mound was of long duration; 

 possibly that it had been inhabited by different 

 tribes. 



Jeffreys Wyman and Clarence B. Moore have 

 made extensive investigations among the freshwater 

 shell mounds of Florida and the latter has studied 

 these same marine shell mounds, but only a begin- 

 ning has really been made and results are meager. 

 Even in Europe, where the remains of prehistoric 

 man have been exhaustively studied, archaeologists 



