A. Diagram illustrating results ot deep sea research. 



B. Some modern methods of exploring the depths of the 

 North Atlantic, i. Instrument for obtaining samples 

 of water for analysis. 2. Nansen's deep-sea net. 3. 

 Trawl. 4. Instrument for taking soundings, temperature, 

 ind samples of ocean bed. 5. Globigerina oote with 



OCEANOGRAPHY: METHODS AND RESULTS 



6. U,, MK.TIIM and, 7. radioiaruns, all highly magnified. 



C. Fish with luminous head organs found at a depth of 



from i.ooo to a.ooo fathoms. D. l-'ish with highly Posi- 

 tive organs of touch. E. Fish with distending stomach 



:apable of holding prey larger than itself. F. Fish with 

 entirely phosphorescent head 

 OF SCIENTIFIC DEEP-SEA EXPLORATION 



