Typographical errors corrected by the etext transcriber:

succed in tone=> succeed in tone {pg xv}

approximateiy accurate=> approximately accurate {pg xvii}

be more worthy the=> be more worthy of the {pg 50}

ridiculous claims or=> ridiculous claims of {pg 107}

GLASS.—Klingeuthal=> GLASS.—Klingenthal {pg 170}

HAÜSSLER, Gustave=> HÄUSSLER, Gustave {pg 187}

enumerated by von Lutgendörff=> enumerated by von Lütgendorff {pg 244}

Egiduis, circa 1700-30=> Egidius, circa 1700-30 {pg 249}