Type of--Advancement--Habitations--Clothing--Food--Arts and Manufactures--Vast number of implements discovered--War-- Agriculture--Burial--Dolmens, Tumuli, Cromlechs, and Menhirs-- Victims, or Cannibalism. 103 CHAPTER XII. BRONZE EPOCH. No direct relation to Antiquity of Man--How characterized-- Type--Habitation and Food--Clothing--Implements--Arts-- Agriculture--Fishing and Navigation--Burial--Religious Belief--Stone crescents. 108 CHAPTER XIII. IRON EPOCH. Civilization established--Swiss Lake-Dwellings--Dr. Keller's Observations. 112 CHAPTER XIV. TRACES OF MAN IN AMERICA. Great opportunities for the Archæologist--Aim of the chapter-- Skull from Osage Mission--Comstock lode--Charcoal at Toronto-- Knife from Kansas--Pelvic bone from Natchez--Skeleton from New Orleans--Remains from the reefs of Florida--Caverns of Brazil-- Shell Heaps--Mound-Builders--Extent of Mounds--Implements of-- Sacrificial--Sephulchral--Temple--Symbolical--Antiquity of-- Fort Shelby--How long the Mound-Builders remained. 114 CHAPTER XV. WRITTEN HISTORY. Mystery of Ancient Empires--Rollin's difficulties--Egypt-- Manetho's list--Statement of Herodotus--Mariette's explorations--Borings in the mud deposits of the Nile-- Dr. Schliemann's discoveries at Troy--History of Chaldea by Berosus--Astronomical calculations--Chinese history-- Mexican History. 123 CHAPTER XVI. LANGUAGE. A field for study--Three divisions of language--Rhematic period--Origin of--Various theories--Change of--Views of Ancients--Number of--Comparative permancy of written language. 132 CHAPTER XVII. UNITY OF THE HUMAN RACE. Objections to the Unity of the Race--Anatomical-- Geographical--Disparity of--Non-existence of medium types-- Phenomena caused by two united types--Objections answered-- Both man and animals affected by climate, food, and condition--Examples--Argument from language--Ocean navigated by frail crafts--Examples--Captain Tyson and party--The two extremes exist in all nations, and even in families--People who have retrograded--Races will amalgamate and perpetuate their kind--Griquas--Papuas--Pitcairn Islanders--Law of hybridity--Close affinity of the races--Slow change of. 136 CHAPTER XVIII. THE BIBLE.