The past guards its secret well. To learn of it we must seek new methods of inquiry. Discouraged by the difficulties in the way, many have supposed it hidden from the present by a veil which only thickens as time passes. In the remains of prehistoric times they have failed to recognize the pages of history. They saw only monuments of ancient skill and perseverance: interesting sketches, not historical portraits. Some writers have held that we must give up the story of the past, “whether fact or chronology, doctrine or mythology—whether in Europe, Asia, Africa, or America—at Thebes, or Palenque—on Lycian shore, or Salisbury plain—lost is lost and gone is gone for evermore.” Such is the lament of a gifted writer,[2] amongst the first to ponder over the mysteries of the past. At the present day, with better means at hand, a more hopeful view is taken. But here a caution is necessary; for, in attempting to reconstruct the history of primitive times, such is the interest which it inspires, that many allow imagination to usurp the place of research, and write in terms too glowing for history.[3] The human mind is sleepless in the pursuit of knowledge. It is ever seeking new fields of conquest. It must advance: with it, standing still is the precursor of defeat. If necessary it invents new methods of attack, and rests not until it gains its objective point, or demonstrates the hopelessness of its quest. The world needs but be informed that on a given point knowledge is dim and uncertain, when there are found earnest minds applying to the solution of the mystery all the energies of their natures. All the resources of science are brought to bear; every department of knowledge is made to contribute of its store: and soon a mass of facts is established and a new science is added to the department of human knowledge.