AND A DISCUSSION OF THE 



FIRST DISCUSSION OF THE 



DISCUSSION OF THE 



DESCRIPTION OF THE 



THE 



DESCRIPTION OF A 



INVESTIGATING PLANKTON 



INSTRUMENT FOR STUDYING 



ERROR DUE TO THE 



E SAMPLE CONDITION, AND 



EN NET . DISCUSSION OF 



FISHING, CLOGGING, AND 



PLANKTON 



WITH NOTES ON PLANKTON 



R OF + DISCUSSION OF 



OF THE ERRORS DUE TO 



PLANKTON NETo PLANKTON 



OF AVOIDANCE, FLOW 



DISCUSSION OF FLOW 



VELOCITIES AND FLOW 



SCRIPTION OF A MODIFIED 



DESCRIPTION OF THE 



LAGIC FRY OF THE YELLOW 



DER. DISCUSSION OF THE 



H + EXPERIMENTS ON THE 

 ON + DESCRIPTION AND 



NG SPEEDS OF A MODIFIED 



DESCRIPTION OF THE 



TRAP, THE CHUN 



PALUMBO-CHUN- 



PALUMBO-CHUN- 



PALUMBO-CHUN- 



E FOR THE PALUMBO-CHUN- 



ON OF THE PALUMBO-CHUN- 



OLAND LARVA NET AND THE 



THE NANSEN NET AND THE 



THE KORBNETZ, AND THE 



THE WORKING ERROR OF 



-NET CATCHES OF PACIFIC 



THE EGGS OF THE PACIFIC 



ISH LARVAE, PACIFIC + 



ISH LARVAE PACIFIC + 



URING SURVE+A RECORD OF 



ANKTON SAMPLING., THE 



DESCRIPTIONS OF THE 



TECHNIQUE. II. A NEW 



COMPARISON OF THE 



N INVESTIGATED WITH THE 



EIN 



PALUMBO-CHUN- PETERSEN NET. + NET, 

 PALUMBO-CHUN- PETERSEN NET. 

 PALUMBO-CHUN -PETERS EN NET. 



PALUMBO-CHUN-PETERSEN NET. 

 PARACHUTE NET.- 



PARAVANE DEPRESSOR FOR USE WITH THE 

 PATCHES. DESCRIPTION OF THE ROTATIN 

 PATCHINESS OF PLANKTON. + AND OF AN 

 PATCHINESS OF PLANKTONIC FISH EGGS. 

 PATCHINESS. + BY ORGANISMS, TH 

 PATCHINESS. + AND THE PETERSEN-HENS 

 PATCHINESS. COMPARISON OF SAMPLING 

 PATCHINESS. EFFECTS ON REPEATED NET 

 PATCHINESS. -+ FOR PLANKTON SAMPLING, 

 PATCHINESS, AVOIDANCE, AND THE NUMBE 

 PATCHINESS, DEPTH SAMPLED, VOLUME 

 PATCHINESS, GEAR SELECTIVITY AND 

 PATTERNS AND FILTRATION CHARATERISTI 

 PATTERNS AT THE MOUTH OF NETS, AVOID 

 PATTERNS INSIDE AND OUTSIDE OF FOUR 

 PAVE SI CLOSING NET. DE 



PAVESI-TYPE CLOSING NET. 

 PERCH, PERCA FLAVESCENS /MITCHILL/, 

 PERFORMANCE OF FLOW METERS. + RECOR 

 OF PETERSEN TYPE VERTICA 

 OF PLANKTON SAMPLING WIT 

 OF THE HIGH-SPEED PLANKT 

 TEST OF FOUR TYPES OF PL 

 PETERSEN CLOSING NET AND A SIMILAR D 

 PETERSEN CLOSING NET. 

 PETERSEN INTERMEDIATE TOW NET, AND 

 PETERSEN NET 

 PETERSEN NET 

 PETERSEN NET 



PETERSEN NET. + RELEASING DEVIC 

 PETERSEN NET. + NET, AND A DISCUSSI 

 PETERSEN YOUNG FISH TRAWL. + THE HELG 

 PETERSEN- HENSEN NET. DISCUSSION 

 PETERS EN- HENS EN QUANTITATIVE NET. 

 PETERSEN'S YOUNG FISH TRAWL. - 

 PILCHARD (SARDINOPS CAERULEA) EGGS.- 

 (SARDINOPS CAERULEA) OFF 

 EGGS AND LARVAE AND OTHER F 

 EGGS AND LARVAE AND OTHER F 

 EGGS AND LARVAE COLLECTED D 

 + QUANTITATIVE PL 

 THE CLOSING NET, 



PERFORMANCE 

 PERFORMANCE 

 PERFORMANCE 

 PERFORMANCE 



PILCHARD 



PILCHARD 



PILCHARD 



PILCHARD 



PLANKTON BAR.- 



PLANKTON BUCKET, 



PLANKTON CATCHER. -+ THE HYDROGRAPHIC 



PLANKTON CATCHER WITH A CONVENTIONAL 



PLANKTON INDICATOR. 



PLANKTON MEASUREMENTS 



PLANKTON METER- A DEVICE FOR COLLECTING 



PLANKTONNETZ . 



Oil 

 207 

 209 

 213 

 889 

 323 

 827 

 019 

 317 

 351 

 415 

 268 

 883 

 073 

 592 

 219 

 073 

 767 

 527 

 423 

 696 

 679 

 664 

 015 

 475 

 635 

 027 

 610 

 475 

 687 

 811 

 207 

 209 

 213 

 217 

 Oil 

 169 

 415 

 467 

 325 

 777 

 765 

 015 

 017 

 013 

 825 

 471 

 689 

 128 

 374 

 029 

 770 

 255 



73 



