Natural Science, vol, vii. 



[Plate III. 



Deki-Sea Deposits. 



Fig. I. Radiolarian 

 Ooze, Central Pacific, 

 4,475 fms. X 100. 



Fig, 2. Diatom Ooze, 

 Antarctic Ocean, 1,900 

 fms. X 200, 



Fig. 3. Tooth of an 

 extinct species of Car- 

 charodon. 



Fig. 4. Globigerina 

 Ooze, North Atlantic, 

 1 ,900 fms. X 50. 



