26 



ROLLIN T. CHAM BERLIN 



closest scrutiny. But before attempting to interpret the history 

 of the stream, let us review briefly the geologic section at Vero, 

 though we have little occasion to depart from the careful descrip- 

 tion of Dr. Sellards. 



i 



Beneath the stream deposits, as well as beneath the whole 

 region under consideration, the oldest beds exposed to view belong 

 to the Anastasia formation, a striking marine shell marl, often 

 known as "coquina" rock. Composed almost entirely of shells, 



Fig. 2. — Detailed map of the locality where the human bones were found. The 

 canal and the resulting dump piles have done much to change the original topography. 

 The dotted area represents the flood plain of Van Valkenburg's Creek as its appears 

 to have been just prior to the digging of the canal. The first human skeleton was 

 found in formation No. 2 at point marked M, the second at point N, while human 

 relics were found in formation No. 3 at point as well as also near N. 



in most cases but little fragmented, its identity is always clear, and 

 it thus affords a. most excellent datum plane at the base of each 

 section studied. It is Dr. Sellards' formation No. 1, and is assigned 

 to the Pleistocene. In its upper portion it grades into beach sands 

 containing here and there lenses and streaks of shells, and these, in 

 turn, pass upward almost imperceptibly into fresh-water or wind- 

 blown sands. This formation underlies both the area of Van 



