5URFACE NET5 

 • TTER TRAWL 



^MESSENGERS 



PLATFORM 



'VERTICAL NET5 



TEMPERATURES 



AND 



WATER SAMPLED 



BOUNDING 



TUBE aTiA WEIGHT 



DREDGE 



Fig. 2. — Diagrammatic View of the Oceanographic Apparatus of the Arcturus. 

 Nets, trawls, dredges, etc., used in studying the life of the sea. 



