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California Agricultural Teaching Aid Photograph Collection

Owning Institution: UC Davis, University Library, Special Collections

About this Collection

The collection contains mounted photographs used presumably by the Alameda County Schools Curriculum Materials Center and later by the Hayward Unified School District as a teaching tool. The photographs are related to three subjects: dairy farming, the Delta Mendota Canal Fish Diversion Facility, and cattle ranching in Alameda County. The photographs were presumably taken circa 1950-1959. Captions from the back of each photograph have been used in the descriptions. View this collection on the contributor's website.
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76 items found in this collection

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25 Clean up after milking often takes longer than the actual milking …
26 After milking each morning and evening the barn and holding pen …
27 A refrigerated tank truck from a dairy plant in the city …
28 In the laboratory at the dairy plant, samples of all the …
29 Some products and services used on the dairy farm and some …
30 The Central Valley Project is a federally financed and operated project …
31 This is an aerial view of the Tracy Pumping Plant area …
32 This is a large relief map of the Central Valley Project …
33 This is a rear view of the floating trash deflector shown …
34 This is a trash rake located at the beginning of the …
35 This is the opposite view of the trash rake showing the …
36 This is the floating deflector for trash across the intake canal. …
37 This is a view from the floating trash deflector showing the …
38 This is a close-up of the conveyor used in clearing the …
39 This is the conveyor dumping the trash on to the waiting …
40 This is the four ton gantry crane located above the "primary …
41 These are holding tanks. After the fish are collected from the …
42 Fish and water enter the holding tank through the pipe shown …
43 This is a fish counting bucket about to be lowered into …
44 This is a fish counting bucket inside the screened tank. After …
45 The bucket is removed from the holding tank and fish are …
46 The fish are counted. Undesirable fish, such as carp, are thrown …
47 During peak hours of collection more than one man is used …
48 This is a fish transporting bucket. The fish are being removed …
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