D. SELECTED REFERENCES 



VIII- 1. ATKINS, W. R. G., and others. Measurement of submarine 

 daylight, Journal du Conseil , vol. 13, no. 1, p. 37-57, 1938. 



VHI-2. - - - Photo-electric measurements of the seasonal variations 

 in daylight around 0.41^., from 1930 to 1937, Proceedin gs of 

 the Royal Society , Series A, vol. 165, no. 923, p. 453-465, 1938. 



VIII- 3. AUSTIN, R. W. Water clarity meter: operating and mainten- 

 ance instructions. University of California. Scripps Institution 

 of Oceanography. Visibility Laboratory. SIO Reference 59-9. 

 San Diego. 63 p. February 1959. 



VIII-4. BURT, W. V. On the attenuation of light in the sea, Journal , 

 Marine Biolo g ical Association , vol. 36, p. 223-226, 1957. 



VIII-5. CLARKE, G. L., and WERTHEIM, G. K. Measurements of 

 illumination at great depths and at night in the Atlantic Ocean 

 by means of a new bathyphotometer, Deep-Sea Research , vol. 

 3, p. 189-205, 1956. 



VIII-6. DUNTLEY, S. Q. Improved nomographs for calculating visibility 

 by swimmers (natural light). U. S. Navy Bureau of Ships Report 

 No. 5-3. 32 p. February I960. 



VIII-7. ENGSTROM, R. W. Multiplier photo-tube characteristics: 

 application to low light levels, Journal of the O ptical Societ y 

 of America , vol. 37, p. 420-431, 1947. 



Vni-8. GIER, J. T., and DUNKLE, R. V. Total hemispherical radio- 

 meters, Proceedin gs, American Institute of Electrical Engin- 

 eers , vol. 70, Pt. I, p. 339-345, 1951. 



VIII-9. HUBBARD, C. J. A wide-range, high-speed bathyphotometer. 

 Woods Hole Oceanographic Institution. Reference No. 56-68. 

 6 p. November 1956. 



VIII- 10. KIMBALL, H. H. Pyrheliometers and pyrheliometric mea- 

 surements. U. S. Weather Bureau. W. B. No. 1051. Circular 

 Q. Washington: U. S. Govt Print Off. 28 p. 1931. 



VIII-11. MASSACHUSETTS INSTITUTE OF TECHNOLOGY. VISIBILITY 

 LABORATORY. The visibility of submerged objects, final 

 report. Cambridge. 74 p. August 1952. 



VIII-9 



