CERTAIN ANTIQUITIES OF THE FLORIDA WEST-COAST. 365 



eastern side, where it distinctly leaves the straight line to go around a gumbo limbo 

 tree, as shown at C. This alone we think sufficient to prove the comparatively 

 modern origin of the wall. At the southeastern corner it circles about a lemon 

 tree at D and comes to an end. There is no sign of a wall in the southwestern 

 corner, there being there only a loose heap of large shells, mostly conchs. Such 



Site of D 



rlge and wall of conch-shells, Demorey Key. 



heaps are very frequently met with on the shell islands which have been cultivated, 

 since the large shells interfere with the hoe and the plow. At Chokoloskee, in the 

 Ten Thousand Islands, great piles and ridges of these shells, collected within the 

 last few years, are to be seen. At Josselyn Key are similar heaps of shells thrown 

 loosely together, which Robert Allen, the captain of our steamer, informed us he 



