730Ba4602: Man in hat standing near pump with USDA car in background

Second man leaning into driver's side of car

2016-07-12
2016-07-12

730Bc02: "Water wheel in canal. 1 mile east of Manzanola"

1930-05-28
2016-07-12
2016-07-12

730Be08: Man in plaid shirt measuring water flow from pump

Another man kneels next to flume in distance. Farm on left side of road

2016-07-12
2016-07-12

730Be09: Men standing around unlined irrigation ditch and one man kneeling next to...

Farm on left side of road

2016-07-12
2016-07-12

730Be10: Man wearing earphones measuring water flow from pump

Farm on left side of road. Image used as cover of "The use of current meters in measuring pipe discharges" by Carl Rohwer.

2016-07-12
2016-07-12

730Be11: "Measuring discharge with Hoff current meter. Bartels new well"

1942-04-01
2016-07-12
2016-07-12

730Be12: Man in plaid shirt measuring water flow from pump, other men watching

2016-07-12
2016-07-12

730Be1401: Equipment used for field testing pumps

2016-07-12
2016-07-12

730Be1402: Equipment used for field testing pumps

2016-07-12
2016-07-12

730Be15: Men standing over weir and flume in fenced in area

2016-07-12
2016-07-12

730Be1601: Man holding circular instrument crouching over pipe with pouring water

Current meter leaning against pipe behind man

2016-07-12
2016-07-12

730Be1602: Men installing flume in ditch

2016-07-12
2016-07-12

730Bd01: "Pumping plant sub-station Ranch of Trebis near Boone. NW4 Sec 23, T.21S.,...

1929-08-14
2016-07-12
2016-07-12

730Be17: Pipe lying on bank next to stream

2016-07-12
2016-07-12

730Be18: Man measuring water in ditch, truck on left side

2016-07-12
2016-07-12

730Be19: Man standing on wooden plank, measuring water in ditch

2016-07-12
2016-07-12

730Bf02: "Bucket pump in dug well of Jas Bolinger Sec. 31 T.1.N., R55W. Cave in around...

1933-11-02
2016-07-12
2016-07-12

730Cb01: "Joe Cowan. Florence, Colo"

2016-07-12
2016-07-12

730Cb0201: Two men standing next to large engine driving pump in field

2016-07-12
2016-07-12

730Cb0202: Large engine driving pump in field

2016-07-12
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730Cb0203: Large engine driving pump in field

2016-07-12
2016-07-12

730Cb03: "Auto engine converted for driving pump"

2016-07-12
2016-07-12

730Cb04: "Auto engine driving pump"

2016-07-12
2016-07-12

730Be01: "Test of Farr well. 18 inch weir and 9 inch flume in tandem"

Man kneeling at head of trench

1932-09-14
2016-07-12
2016-07-12

730Cb05: Converted auto engine for driving pump

2016-07-12
2016-07-12