22 The American Naturalist. [January, 
south of Lake Harney. Deep and numerous excava- 
tions gave no pottery below seven and one half feet. 
7—One arrow head of chalcedony in Bryson’s Mound, 
(Volusia Co.,) (Fig. 7). This arrow head was not found 
when thrown out, but as it lay among material belong- 
ing to astratum not seen within three feet of the surface, 
its depth may be set down at from three to five and one 
half feet. Sour orange trees only, 
8.—One spear head of bluish chert in the shell-heap on 
Salt Run, Lake George, (Marion Co.,) at the bottom of 
the heap three and one half feet from the surface. No 
pottery found anywhere in this shell-heap below surface 
loam. No orange trees. 
9.—One arrow or spear head of hornstone beveled on both 
sides 2.34 inches long with maximum thickness of .47 
inch, four feet from surface in conical shell-heap in 
swamp one mile north of Astor, (Lake Co.,) near ‘fire- 
place. No pottery pasando in this mound beneath 
surface loam. 
10.—Three lance heads about fourteen feet from surface in 
Mulberry Mound, (Orange Co.). Two of fine chert, 
thin and of graceful pattern; one of somewhat ruder 
workmanship fashioned from coarse, yellow chert. 
These lance points have been described in a previous 
paper and many reasons adduced why Mulberry 
Mound must be considered among the very latest of 
the shell-heaps. Ornamented pottery was found to 
water level. 
As will be seen by the figures, the arrow heads of the pre- 
sumably earlier shell-heaps are rude in type. They are also 
characterized by unusual thickness. 
Stone implements of the St. John’s River are distinctly neo- 
lithic, though Professor Wyman in error characterized certain 
rough specimens found by him as of the St. Acheul type? 
The writer has submitted to Professor Haynes a representa- 
tive collection of rude chipped implements of various sizes, 
ted to him and reported as coming from the shell-heaps 
by owners of orange groves and other responsible persons. 
*Fresh Water Shell Mounds of the St. John’s River, Florida, page 49, 
