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CONTENTS--Continued 
FIGURES 
SWplsit Cantal Mreteeie Smee neue o otnrsitc airetll cle eMac cite Tem mi circus 
OpElcCalMmConcent ration Metetynan) owe Pele! holm) loan ema chou 
Yokessuppor.t oruconcenitratvom) meters ey si tei) ot le 
Calibration curve for sediment diameter: 
OR4y/  mailsimeters So DE< 0) 49/5) madelmeters ss ee es 
Examples of measured concentration distribution curves. 
M versus Up (eq. 4) for amplitudes equal to or greater 
than 0.693 foot and sediment-settling velocity, 
Ve = W505) oo jer SOCOM 6 6 6B a Sls SoG 6o 68 
M versus Up for optical equipment moving with the flume 
and stationary in space, uSing a 0.925-foot amplitude 
stOIe AULIL MSCS WHRSNENES 6 Sg GG) 6 6 OO Ge on dud 6.0 6c 
M versus Uo for sediment-settling velocity, 
Vg. = O5085 SOE joe! SSCGOMG G6. 65 Bio 066d O10 oe 
M versus location of optical equipment for identical 
PLOW CONGE TONS Veli= OL O55 oot PeRySeCOnd. js 1s 6 ie 
Concentration) dasitaibutrony form muny Slay sit vey el 
Concentration adi sitaalbucaong tors ouia 02) vere eaimiey tons 
Concentration adastab talon fourm ould OSarse surements 
Concentration dastributdony fom) run Oia OG a) se ces ve 
Concentration distribution for Gun ol4 S05) s.) <tc oh 
M versus U, for Vg = 0.035, 0.498, and 0.0626 foot 
STH SIS COM Cipree pen antennae, wien Oa tance uatilraanen eel nisl Mawel aie 
Functional schematic of hot-wire bridge circuit... . 
Hoe ticlimssiens omvandwpcobenenieiienien te timrelnet elton onion or taille 
HOt tlmmanemome ter calla braltaonitamkaiijey io) en etiet ust ere) ie 
Hots tiamyproverextensTonuassSemb liygisy cis wells! lepiley leuisiune 
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Sy 
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