Image from page 143 of “Journal of the Academy of Natural Sciences of Philadelphia” (1817) – more Sharks goodness curated by www.SardineRunPE.co.za
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Title: Journal of the Academy of Natural Sciences of Philadelphia
Year: 1817 (1810s)
Authors: Academy of Natural Sciences of Philadelphia
Subjects: Natural history
Publisher: [Philadelphia : The Academy]
Contributing Library: Smithsonian Institution Libraries
Digitizing Sponsor: Biodiversity Heritage Library
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Text Appearing Before Image:
(Fig. 3), several sinkers, or pendentornaments, one gracefully fashioned from polishedtrap rock (Fig. 4), and a number of small sheetsof mica; also the enamel covering of the tooth ofa man-eating shark. The bony portion, whichmay have contained a perforation for suspension,was missing. It is not unlikely that such teethserved to tip projectile weapons. In different portions of the mound were bitsof galena, sometimes several in association, thelargest being perhaps two-thirds the size of aclosed fist. On the base, at that point aboutthirteen feet below the surface, were two lumpsof the lead sulphide and a cube of the same mate-rial about 7 of an inch in diameter, perforatedfor use as a bead—a bright and attractive orna-ment when uncorroded. In no other mound ofthe St. Johns have we seen galena utilized as anornament. A number of perforated pearls were met withfig. i. Spade-shaped implement, Mt. • wsociation with small shell beads in variousRoyal. (Full size.) portions of the mound.
Text Appearing After Image:
COPPER. Note.— The chemists who made analyses given on pages 34 and 39 of Part I ofthis report now state that lead was present in the sulphuric acid used by them. Theseanalyses are, therefore, valueless and are withdrawn, as are remarks on copper onpage 35- THE ST. JOHNS RIVER, FLORIDA. 139 The yield of copper during this second investigation was somewhat disappoint-ing, for while a considerable number of ornaments and implements rewarded oursearch, but little was found differing to any extent from those met with during ourfirst visit. Eleven and one-half feet from the surface was an oblong ornament of sheetcopper 2 8 by 3-7 inches. A central perforation was surrounded by a circle of
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