OF THE IMPROVED SURFACE 



OF THE ORDINARY SURFACE 



RECORDER, ONE METER 



PUMPS, WATER SAMPLERS, 



OF A VARIETY OF 



N CATCHER, MODEL +TRIAL 



METHOD FOR ITS STANDAkD 



ER WATER. +0N A DEEP SEA 



A HIGH-SPEED 



OF A CLOSING 



DESCRIPTIONS OF THE 



A SMALL 



AVOIDANCE OF 



ANGLE DETERMINATION FOR 



E RECORDER FOR USE WITH 



ARATUS FOR HORIZONTALLY 



YSTEM FOR SAMPLING + A 



EFFECTIVENESS OF 



DESIGNED FOR HIGH-SPEED 



EFFECT OF THE SPEED OF 



OF TOWING WIRE WHILE 



WITH SOME NOTES ON THE 



MIDWATER NETS AND THEIR 



HYDRODYNAMIC AND 



AMPLING GEAR.- 



GULF III WITH REGARD TO 



E STRENGTH OF STRUCTURE 



SWIVEL CABLE CLAMP FOR 



AT ION AREA, MOUTH AREA 



SAMPLER WITH VARYING 



ICIENT AS A FUNCTION OF 



NCTION OF MESH SIZE AND 



OF WATER FILTERED AS 



AND APERTURE SIZE, THE 



ND + DISCUSSION OF 



Y AT DIFFERENT VERTICAL 



ER " HAI " AT DIFFERENT 



OF TOWING SPEED, 



DIFFERENT LENGTHS OF 



SAMPLER, AND SPEED OF 



KTON COLLECTOR FOR FAST 



VERTICAL AND HORIZONTAL 



KTON NET FOR HORIZONTAL 



ON SAMPLER FOR VERTICAL 



NG THE CATENARY IN FAST 



AULS AND FOR HORIZONTAL 



ITS ATTACHMENT TO THE 



DEPTH OF THE NET DURING 



NET USED, THE METHOD OF 



CAPABLE OF TAKING DEEP 



POOL, BETWEEN REPLICATE 



DESCRIPTION OF OBLIQUE 



TOW NET, 

 TOW NET, 

 TOW NETS, 

 TOW NETS, 

 TOW NETS, 



SIGSBEE'S GRAVITATING TRAP, 

 THE HELIGOLAND SCHERBRUTNET 

 AND THE CLARKE- BUMPUS 

 PLANKTON TRAPS, AND THE 

 TRAWLS, AND PLANKTON TRAPS 

 TOW WITH HIGH-SPEED UNDERWAY PLANKTO 

 TOW.+ HALF- METER NO.l SILK NET AND 

 TOW-NET FOR OPENING AND SHUTTING UND 

 TOW- NET. - 



TOW- NET, FOR SUBMARINE USE AT ALL 

 TOW- NETS AND THEIR USE ABOARD THE 

 TOWED NET FOR OCEAN SURFACE SAMPLING 

 NETS BY ZOOPLANKTONo- 

 NETS, DISCUSSION OF WIRE- 

 PLANKTON NETS. -+ DEPTH- DISTANC 

 PLANKTON NETS.+A RELEASING APP 

 PUMP AND SHIPBOARD FILTERING S 

 TOWED- NET SAMPLERS AS RELATED TO 

 TOWING AND CAPABLE OF TAKING UP TO 



AND MOUTH SIZE ON THE ABILITY 

 AT A CONSTANT SPEED. IN 

 TOWING BEHAVIOR OF A SIX-FOOT ISAACS 

 TOWING CABLES.- + OBSERVATIONS OF 

 TOWING CHARACTERISTICS OF A MODIFIED 

 TOWING CHARACTERISTICS OF PLANKTON S 

 TOWING CHARACTERISTICS, DAMAGE TO 

 TOWING FORCES AND CATCHING ABILITY. 

 TOWING LARGE PLANKTON NETS AT DIFFER 

 TOWING SPEED 

 TOWING SPEED, 

 TOWING SPEED 

 TOWING SPEED. 



TOWED 

 TOWED 

 TOWED 

 TOWED 

 TOWED 



TOWING 

 TOWING 



AND CLOGGING 

 AND MESH SIZE, OF CLOGG 

 + THE FILTRATION COEFF 

 TOWING SPEED.+ BUMPUS SAMPLER AS A FU 

 TOWING SPEED, CLOGGING, AGE OF THE 

 THE RATIO OF MOUTH 

 TOWING WIRE TENSION, A 



TOWING SPEED, 

 TOWING SPEED, 

 TOWING SPEEDS, 

 TOWING SPEEDS .+ 

 TOWING 

 TOWING 



OF THE PLANKTON SAMPL 

 WIRE TENSION, AND ADJUSTMENT 

 WIRE WHILE TOWING AT A CONSTA 



TOWING. + OF ORGANISMS RELATIVE T 

 TOWING „- A PLAN 



TOWING.- + CATCHER FOR USE IN 

 TOWING.- ON A SELF-CLOSING PLAN 

 TOWING, -+ OPENING-AND-CLOSING PLANKT 

 TOWING. -+ A SUGGESTED METHOD OF TESTI 

 TOWING. -+ CLOSING- NETS FOR VERTICAL H 

 TOWING-WIRE, AND DISCUSSION OF THE 

 TOWING, AND A DEFINITION OF A , ,STAN 

 TOWING, THE DETERMINATION OF THE 

 TOWS AND OF AN INSTRUMENT FOR STUDYI 

 TOWS DURING MIDDAY AND MIDNIGHT 

 TOWS MADE WITH A 1.6 AND A 1.0 METER 



811 

 467 

 237 

 533 

 884 

 667 

 649 

 435 

 327 

 829 

 819 

 905 

 297 

 735 

 607 

 733 

 665 

 107 

 903 

 323 

 033 

 081 

 089 

 807 

 083 

 227 

 442 

 707 

 308 

 054 

 129 

 349 

 593 

 385 

 408 

 808 

 843 

 399 

 808 

 033 

 107 

 691 

 129 

 505 

 131 

 139 

 651 

 219 

 017 

 017 

 019 

 297 

 765 



79 



