R Rainey, F. G., 156 Ranking, John, on extinction of American mammals, 193 Ray, Cyrus N., 161 Recent Period. _See_ Postglacial Period Red Lady of Paviland, 97 Reeves, R. G., and cereal treasure, 268 Renaud, E. B., discoveries of, 173-74 Retzins, Anders, sets up cephalic index, 210 Rickard, T. A., on classification of cultures, 35-37; on scope of Bronze Age, 34 Riss glaciation, 47 River terraces, determination of culture periods of early man through, 50-52, 64, 72, 73 Rivet, Paul, on origin of early man in New World, 224-25 Roberts, Frank H. H., Jr., 146; digs Lindenmeier site, 150; on early man in America, 125, 127, 278 Rogers, Malcolm J., challenges dating of Mohave and Pinto, 160 Romer, Alfred S., on extinction of mammals, 203 Romero, Javier, on Tepexpan man, 138 Rosholt. _See_ Dating Rostrocarinates. _See_ Eoliths S Saltadora Cave, paintings in, 112-13 Sandia Cave, dating of man found in, 191; findings at, 165, 184; points found with extinct mammals in, 191 Sauer, Carl, 169; on agriculture in New World, 265-66, 272; on backwardness of living American tribes, 223-24; on cornlike Asian grasses, 274; on existence of glacial man, 290; on extinction of mammals, 202-3; on migration routes, 22; on pluvials, 294 Sauk Valley man, 133 Sautuola, Marcelino de, 112 Schultz, C. Bertrand, discoveries of, 166; on existence of glacial man, 290 Scopes trial. _See_ Monkey trial Scott, William B., on historic existence of Pleistocene mammals, 197 Sculpture, 171; Aurignacian, 98, 256; Magdalenian, 107, 256 Sellards, E. H., believes Oklahoma find glacial, 146; discoveries of, 133-34, 171 Seton, Ernest Thompson, 200 Shanidar Cave, 96 Simpson, Sir George C., on rainfall during Great Ice Age, 294; on solar energy during glaciation, 57-59 Simpson, George Gaylord, 281 Smith, Sir Grafton Elliot, 16; on autochthonous origin of Indian cultures, 239-40 Smith, Joseph, 15, 16 Smith, Philip S., on crossing into New World, 20 Smith, Reginald A., 173 Solecki, Ralph S., 96 Solutreans, 102-7, 283-84; artifacts of, 158, 165; hypothesis of invention of bow and arrow by, 108; hypothesis of origin of, 104; as offshoot of Mousterians, 104, 284; painting and sculpture of, 256 Southern apes, 85-87 Spear points, association with animal fossils of, 149, 189; Clovis Fluted, 148-49, 153, 169, 180-81; Folsom, 144-51, 153-62, 164-66; invention of, 88, 90; Ohio Fluted, 148; as puzzle of New World, 281-83; as signs of migration routes, 20, 21; Solutrean, 104-7 Spillman, Franz, discoveries of, 194-95 Spinden, Herbert J., on possibility of paleolithic man in Americas, 287-88 Stahl, Willy, discoveries of, 170 Steinheim man, 80;