Reprints, 1906-1923.
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Rydberg, Per Axel, 1860-1931
http://n2t.net/ark:/99166/w69k51zb (person)
Per Axel Rydberg (1860-1931) was born in Sweden on July 6, 1860, and immigrated to the United States in 1882. He first worked in the iron mines in Michigan, and hoped he could become a mining engineer, but after an accident he was left with a limp and could not continue that work. From 1884-1890 he taught mathematics at the Luther Academy in Wahoo, Nebraska. In 1891, he received his Bachelor's degree from the University of Nebraska. He then worked for the U.S. Department of Agriculture. He under...
