1896.] 41 J [Gushing. 



Plate XXVIII. 



In the plan and elevation of Demorey's key presented on Plate 

 XXVIII (described at length on pp. 338 to 341, inclusive), one of the 

 most perfectly preserved, and probably most recent, of the ancient 

 shell settlements or artificial islands of Charlotte Harbor. and neigh- 

 boring waters is outlined. 



The upper sketch-map, although not sufficiently detailed, was drawn 

 from a careful survey laboriouslj'' made by myself, and gives a fairly 

 accurate general idea of the terminal terraces, the two inner canals, the 

 principal graded way, the central group of mounds and pyramids, and 

 the great crowning terrace — with its subsidiary platform of approach — 

 as in part illustrated in the succeeding Plate, — XXIX. Unfortunately, 

 however, neither the sea-wall extensions, the nearly submerged en- 

 closures within the swamps, nor the drainage- and garden-basins — or 

 "Spring holes," locally so-called — in the northern benches or low plat- 

 forms, could be properly shown on this scale. 



The subjoined elevation was redrawn from an imperfect sketch of my 

 own taken from the top of a tree, necessarily inside the key, and hence 

 it gives a view-point that does not quite coincide with the more correct 

 orientation of the map above. Nor does it correspond in scale — of details, 

 — hence the central group of mounds appears too far to the right, and the 

 altar-mounds at the end of the crowning terrace are unduly exaggerated 

 in both height and length. Nevertheless, the general contour of the 

 elevations here shown will serve to suggest, in a measure, their striking 

 similarity to mound-groups in the Mississippi and tributary Valleys, 

 and to the terrace-, or platform-builded foundation-structures of ancient 

 Central American cities, referred to in the concluding paragraphs of the 

 text, on pp. 108, 109. 



PROC. AMER. PHILOS. SOC. XXXV. 153. 3 A, PRINTED AUG. 10, 1897. 



