Semitic, pertaining to one of the families of nations, or languages, and so named from its members being ranked as the descendants of Shem. Serpentine, a soft, massive stone, in color dark to light green. Siliceous, containing silica, or flinty matter. Simian, a name given to the various tribes of monkeys. Squamous, the anterior and upper part of the temporal bone, scale-like in form. Stalagmite, a deposit of earthy matter, made by calcareous water dropping on the floors of caverns. Stratified, formed or deposited in layers. Stratum (pl. strata), a bed or layer. Subsidence, the act of sinking or gradually descending. Superciliary, the bony superior arch above the eye-brow. Suture, the seam which unites the bones of the skull. Symphysis, a connection of bones without a movable joint. Talus, a sloping heap of fragments of rocks lying at the foot of a hill. Tarsal, relating to the ankle. Temporal, pertaining to that portion of the head located to the front and a little above the ear. Terra-cotta, a kind of pottery made from fine clay, hardened by heat. Tertiary, the first period of the age of mammals. Thoracic, pertaining to the breast or chest. Troglodyte, an inhabitant of a cave. Truncated, cut off. Tufaceous, consisting of, of resembling, tuff. Tuff, a sand rock formed by agglutinated volcanic rock. Turanian, that order of languages known as monosyllabic. Ulna, the larger of the two bones of the fore-arm. Veda, the ancient sacred literature of the Hindoos. Vertebra, a joint of the back bone. INDEX. Agassiz, 136. Agriculture, 106, 110. Amalgamation, 140. Amiel, Dr., 20. Archiac, Vic. d', 13. Arts, 77, 91, 104, 109. Aymard, Dr., 19. Baldwin, A. W., 115. Bara, 144. Belgian Caverns, 44, 86. Berosus, 128. Blackmore, Dr., 23. Bligh, Lieut., 138, 140. Bonnemaison, 20. Boucher de Perthes, 12, 18, 19, 38. Boué, Aimé, 11, 16, 41. Bourgeois, Abbé, 22, 61, 62. Brown, James, 22. Buchner, Dr., 50, 52, 55, 56, 60, 75, 121, 124. Buckland. Dr., 16. Burdett-Coutts, Miss, 22. Burial, 91, 106, 110. Busk, 19, 50, 55.