On the other hand an early bronze celt (Butterwick, E.R., Yorks.) showed a smaller quantity of tin—10·74%, compared with 87·97% of copper. (Guide to Bronze Age Antiquities, British Museum.)
Mr George Coffey has also published (“Brit. Assoc. Reports,” 1899, p. 873) a tabulated series of analyses of Irish celts which proved to be composed of practically pure copper. Transl.]
[46] Schliemann, “Ilios,” pp. 527 and 571.
[47] “Verhandl. d. Berl. anthropol. Ges.,” 1882, p. 537.
[48] Dingler, “Polyt. Journal,” 1884, Vol. CCLIII. p. 514.
[49] It should be observed that the change in the proportions according to Schuler (see page [24]) is only true of the analysis, Column III. In Columns I and II the amount of metallic copper of the patina is indeed smaller, but so is also that of lead and especially of tin. But this may be due to a faulty method in the determination of tin noticed by Olshausen (v. “Verhandl. d. Berl. anthropol. Ges.,” 1897, p. 349). The different proportion of the copper compounds in the patina should also be noted, Schuler giving carbonate and hydrate in the proportion 1:1, Arche and Hassack once as 1:2, and again as the result of two analyses as 1:3.
[50] “Atti della Reale Accademia dei Lincei,” 1893, p. 498.
[51] “Étude sur les métaux découverts dans les fouilles de Dahchour” in “Fouilles à Dahchour.” March-June, 1894, p. 131 et seq. J. de Morgan. See also “Comptes rendus,” 1894, I. 118, p. 768.
[52] “Revue archéologique,” v. 28, 1896, pp. 67 and 202. In the publication for the second half of the same year Lechat maintains the assertion (comp. Elster, p. 23) that in many cases the antique patina is due to the artist.
[53] Ant. Misc. 7382.