CERTAIN RIVER MOUNDS OF DUVAL COUNTY, FLORIDA. 487 



length, of the same breadth as 

 of fracture shows a recent break 

 two portions do not join, it is 



Fig. 41. — Ornament of sheet copper. Grant 



mound. (Full size.) 



according to the pattern shown 

 First, the tongue, D, was 

 bent to a right angle with 

 the remaining portion. Then 

 the sheet of the other side 



that portion projecting from the shield. The line 

 as does that of the band on the ornament. As the 

 probable an intervening portion is missing. This 

 band of copper differs from that probably belong- 

 ing to the larger shield, which is made of but one 

 thickness of copper, in that it is constructed of 

 one sheet bent upon itself to give double thickness, 

 the edges meeting at the margin. 



Dr. M. G. Miller, who has made a careful 

 examination of the method of construction of 

 these ornaments, writes as follows : 



" The surfaces of both shields were obscured 

 by a thick coating of carbonate, the removal of 

 which required the use of acid. 



" The smaller ornament consists of two plates. 

 That on the concave side, smooth, undecorated 

 and showing no fissure in the median line, was 

 made from a solid sheet. The plate of the con- 

 vex surface is composed of two sheets each cut 

 in Fig. 42c and united in the following manner : 



Fig. 42b. — Convex surface. 

 (Full size.) 



Fig. 42c. — Pattern of one-half of convex 

 sheet. (Full size.) 



Fig. 42a. — Transverse section. (Full size.) 



being prepared in a corres- 

 ponding fashion, the two 

 were brought together in 

 such a way that the tongues 

 were in apposition and the 

 margins overlapped at E and 

 F, Fig. 42b. Rivets along 

 these margins, as indicated at E, F, in Fig. 42b united the sheets, while the edges 

 of one tongue w T ere bent around those of the other as shown by the dotted lines. 

 The plate thus formed was decorated as represented in the cut, and attached to its 

 companion by applying it against the convex surface and turning its edges around 

 the margin of that plate and pressing them tightly against the other side (Fig. 42a 

 and dotted lines on 42b). More rivets than those represented in the cut may have 

 been used in the formation and union of the plates, but fear of serious injury to the 



61 JOURN. A. N. S. PHILA., VOL. X. 



