174 PREHISTORIC FISHING. 



Fig. 302. This object, of a somewhat flattened shape, consists of a dark 

 metamorphic slate. It expands considerably in the middle, and the lower part 

 shows four ground facets terminating in a point, like the apex of a four-sided 

 pyramid. From South Kingston, Washington County, Rhode Island. It 

 belongs to the Clark collection. 



Fia. 300. Massachusetts. (0508). Fio. 301. Maine. (11024). Fio. 302. Rhode Island. (178M). 



FIGS. 300-302. Stoue sinkers. 



Fig. 303. In this specimen, which has a tolerably regular form, the knob 

 is not sufficiently expanding for permitting a line to be tied firmly below it. 

 But the sinker, composed of sandstone, is much weathered, and the knob may 

 have gradually dwindled away. If, however, the object presents its original 

 form, we must assume that the line also passed around its lower part. From 

 Guadaloupe, Santa Barbara County, California. Sent by Mr. Bowers. 



Fig. 304. A very large sinker of granite, probably suspended in the man- 

 ner suggested in the preceding case. The side not exposed to view in the figure 

 is partly flat. This sinker may have been used in connection with a large hook 

 for catching cod or halibut. From Massachusetts. Presented by General J. H. 

 Devereux. 



Fig. 305. A specimen of unusual form, made of a pebble of elongated 

 shape, somewhat resembling a four-sided prism. The neck is produced by 

 pecking, and there are also traces of work noticeable on the left side and at the 

 lower end. The material is a greenish-gray metamorphic slate. Obtained at 

 Marblehcad, Essex County, Massachusetts, and presented by Mr. J. J. H. 

 Gregory. 



Fig. 306. A well-shaped sinker with flattened knob. The surface is much 

 corroded, and has a slightly porous appearance. The stone out of which this 

 sinker is made effervesces when treated with an acid, and consequently consists 

 of, or contains much, carbonate of lime. Obtained at Sarasota Bay, Manatee 

 County, Floridaj and presented by Mr. J. G. Webb. 



