178 



THE OCEAN FLOOR 



Land bridges (continued) 

 Archiboreis, 15; Archiga- 

 lenis, 13; Archinotis, 13; 

 Lemurian, 15 



Landergren, S., 88 



Lars Hierta Memorial Foun- 

 dation, 101 



Laughton, A. S., 70 



Lemuria, 15 



Libby, W., 103, 131 



Life in great depths, 15 Iff. 



Locher, F., 97f. 



Magellan, 25 

 Magmatic volatiles. See 



Ocean water, origin 

 Manganese nodules, 51, 84, 



104, 127-8, 162 

 Marshall Line, 67 

 Marsigli, Conte Luigi Ferdi- 



nando, 27n. 

 Mathews, Christine, 130 

 Mellis, Otto, 76, 88, 98f., 134 

 Merz, A., 32 

 Mid-Atlantic Ridge, 6f., 22, 



56, 67f., 70, 94, 97, 126, 



141 

 Mohorovic, 65 

 Mohorovicic Discontinuity, 



66, 74 

 Mud-eaters, 81, 104, 153 

 Murray, Sir John, 32, 114 

 Musee Oceanographique, 114 



Nakanishi, 124n. 



National Research Council of 



Sweden, 86 

 Norin, E., 76, 88, 99 

 Nybelin, O., 152, 157 



Ocean, exploration of. See 

 Exploration of ocean 



Ocean banks, 29 



Ocean basins: "birth-scar," 

 13; continental drift, 15ff.; 

 land bridges, 12ff.; origin, 

 16, 18; permanence, 12ff. 



Ocean bottom. See Ocean 

 floor 



Ocean floor: bacteria, 153, 

 161ff.; configuration, 6, 30, 

 81-2; construction, 63ff.; 

 earthquake centers, 66; ex- 

 ploration, 2, 25; geochro- 

 nology, 112ff.; hfe, 15 Iff.; 

 light, 152ff.; movement, 

 14f.; pressure, 154; recent 

 developments from investi- 

 gations, 69ff.; shape, 6ff.; 

 sinking, 14, 21, 24 



Ocean sediment. See Sedi- 

 ment 



Ocean water: origin, 19ff.; 

 proportion of to land, 2, 

 24; rate of accumulation, 

 20ff.; volume, 19ff. 



Oceanographic Institute . of 



