735Aa1506: "Large open pit-type well excavated with dragline. Pit 50 feet wide, 100...

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 12.

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735Aa1510: Two perforated well casing sections in front of corrugated steel sheet

Title information from "Construction of Irrigation Wells in Colorado" by W. E. Code. See Figure 5.

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735Aa16: "Gravel Packing Barlets well Ft Collins. 9 yards 1 inch screened gravel used...

Second print caption reads, "Frank Bartels well, Stephenson driller. Applying gravel to well. Well being test-pumped. NW 4 21. 8-68."

1941-03-21
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735Aa17: Used well screen encrusted with dirt and rust

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735Aa0201: Front of strainer used by Galen Evans of Nebraska on Browns place 1/2 mi...

1935-05-15
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735Aa18: Used well screen encrusted with dirt and rust

Screen lying next to wooden structure

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735Aa19: "Fixed wood-stave curb of type used in dug wells. Starter section shown on...

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 10.

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735Aa24: "Section of stovepipe casing perforated with Mill's knife"

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 24.

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735Ab01: "J.D. Singleton well, Grayum and Campbell contractors, Long perf. tube used to...

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735Ab02: "J.D. Singleton well. Developing, using dry ice. Valve has just been opened...

1934-01-23
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735Ab03: "J.D. Singleton well 24 inch. Using air for developing"

Image also used as Figure 21, "Compressed air being used for well development" in "Construction of Irrigation Wells in Colorado" by W. E. Code.

1934-01-25
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735Ab04: "J.D. Singleton test. Pumping about 360 gpm"

Family standing behind water pouring from pipe into ditch

1934-01-26
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735Ab05: "Surge block 24 inch used at McLeods well"

Image also used as Figure 20, "Twenty-two-inch surge block with wire scratchers" in "Construction of Irrigation Wells in Colorado" by W. E. Code.

1931-04-01
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735Ac01: "Cave-in due to taking out too much material and not keeping curb even or...

Grain elevator at top right in background

1930-05-28
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735Ac02: "Well of Geo. Peak. N.E. 4 Sec. 17 T5N R 68W. Cave in around 8 feet wood curb"

Image also used as Figure 3, "Caving around top of large dug well due to taking out excess material from under the shoe" in "Construction of Irrigation Wells in Colorado" by W. E. Code.

1931-08-01
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735Aa0202: Side of strainer used by Galen Evans of Nebraska on Browns place 1/2 mi east...

1935-05-15
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735Ad01: "Testing well of W.R. Clark. 48 inch well 60' deep"

1929-09-08
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735Ad02: "Well of Harry Farr's. First test May 5, 1930. 48 inch well 54' deep, 60 inch...

1930-05-05
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735Ad03: Five men testing flume and well

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735Ad04: Five men testing well

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735Ad05: Four men testing well next to weir in ditch

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735Ad06: Three men on banks of ditch watching water flow through flume

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735Ad07: Six men on banks of ditch watching water flow through flume

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735Ad18: "Rohwer" - "Patented concrete casing with slotted perforations"

Note on envelope reads, "Irrigation wells". Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 34, which also reads, "Rings are held together by cable threaded through holes in concrete."

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735Ae01: Pit well

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