FOSSIL HUMAN REMAINS AT VERC, FLORIDA 



29 



and this is most naturally interpreted as implying change of atti- 

 tude or of relations, as well as an erosion interval. After such 

 erosion it was covered by the alluvial deposit, No. 3. Because of 

 the large proportion of muck, and the extremely rapid shifting 

 from muck-accumulating to sand-depositing conditions, as revealed 

 by the many alternating layers and lenses of sand and muck, this 



Fig. 4. — The creek section freshly exposed by cutting back into the south bank 

 of the drainage canal at a point about 440 feet southwest of the railroad bridge: 

 1 represents the "coquina" rock grading upward into light-colored sands; 2 is 

 Sellards' formation No. 2, which is here sand largely stained dark brown; note that it 

 fills a trench cut in No. 1; 3 is Sellards' formation No. 3, consisting of alternating 

 muck and coarse sands. Large log projects conspicuously on the right. 



is interpreted as a flood-plain deposit. Its upper surface consti- 

 tuted the flood-plain of Van Valkenburg's Creek prior to 19 13, 

 when the drainage canal was dug. 



THE UPLAND OR COUNTRY SECTION 



Downstream. — Though the surrounding country is not elevated, 

 the general section outside the valley of the creek may be desig- 

 nated the upland, or country, section. Downstream from the 



