6600 Broken animal. Bioluminescence not 



as bright as isolated flashes. Weaker 

 lights are about one- third intensity of 

 first magnitude star. Majority second 

 magnitude. 



6180 No change. Short periods of no flashes. 



More breakup, A single 60- second 

 sustained glow. 



5900 Ballast release caused no excitation. 



5500 Increasing, 



5300 Marked increase since 5500 feet, 



4800 Tenfold increase over 6600 feet. 



42 50 100-2 00 points present at all times. 



Water temperature 5. 0°C. 



4100 Same as above. 



3600 Bright points increasing slightly. 



3000 Same as above. 



2150 Bright points increasing slightly, 



2 000 Twofold increase over 4000. 



1500 Detect contrast color of hull fittings. 



Bright bioluminescence still visible. 



1150 Bioluminescence detectable over 



ambient sunlight. Magnetic value 

 clearly white now. Dark red paint 

 appears black, 



1000 No longer possible to see biolumines- 



cence due to daylight. 



39 



