Yellow River gauging silt sample pump
Black and white lantern slide of two men with a silt pump. One man holds a bucket under the pump spout.
circa 1918-1921
In Copyright
Grand Valley State University. University Libraries. Lemmen Library and Archives
Merrill_LS00180
image/jpg
Image
eng
Merrill, Robert H., 1881-1955, “Yellow River gauging silt sample pump,” Digital Collections, accessed November 22, 2024, https://digitalcollections.library.gvsu.edu/document/52638.