SUMMARY AND CONCLUSIONS 33I 



Meter Net Hauls: 1929 to 1934, 1500 nets. Surface to 1200 

 fathoms. Bathysphere Dives: 



1930: 250 feet 5.5 miles south of Nonsuch 

 5.75 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 



1932: 1000 feet 6 miles south of Nonsuch 



miles south of Nonsuch 



1934- 550 f^c^ 5 miles south of Nonsuch 



miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 

 miles south of Nonsuch 



2. PHYSICAL CONDITIONS AT THE GREATEST DEPTHS 



(a) Daylight 



In my report on the 1930 dives ^ I gave the spectroscopic 

 readings from the surface to 800 feet. At this depth the 

 spectrum showed as a narrow band centering at the wave 

 length 5 20 mil. In Dr. Hulburt's analysis of these observa- 

 tions ^ he says, "Using the light absorption coefl&cients of 

 sea-water as measured in the laboratory and the Ramon- 

 Einstein-Smoluchowski theory of the scattering of light in 



1 Bull. N. Y. Zool. Soc, Vol. XXXIII, No. 6. 



2 Jour. Opt. Soc. Amer., Vol. 22, No. 7. 



