1 62 AT THE END OF THE SPECTRUM 



purple and violet, twenty per cent green, but no other 

 colors. 



At 525 feet many siphonophores passed, and three, long, 

 slender worms with elongated tentacles, others being just 

 visible in the distance. At one time a maze of what looked 

 like large ostracods came close to the glass but were prob- 

 ably pteropods. At 675 feet I saw my first school of 

 ArgyropelecuSy or silver hatchet-fish, which at once shows 

 the imperfection of our trawling apparatus, as adults of 

 this species have never been taken by us in these waters 

 at a lesser depth than 1800 feet. 



At 700 feet we saw jellyfish of other than surface forms, 

 and elongate fish were visible in the blackish blurred dis- 

 tance. Flying snails were seen jerking about in their char- 

 acteristic way (Fig. 100). A pair of dark-banded Seriola, 

 or rudderfish, hung around for a minute or more. The 

 sun went under a blanket of cloud at this moment and 

 before it was announced through the telephone I knew it 

 from the intensification of the blueness. Two more fish 

 appeared at 800 feet and lights on their bodies were faintly 

 visible for a moment. I now became aware of the presence 

 of numerous invertebrates as my eyes became accustomed 

 to the increasing gloom. 



1000 feet was reached at 2:37 p.m. with the light be- 

 coming ever more and more dim. Here we hung for a time 

 until my eyes could get perfectly adapted to the blue- 

 black gloom. Direct looking gave me sometimes less result 

 than the oblique penumbra of vision — and I began to sense 



