Correspondence With Ruhnke on Research, Open House and Letters, 1950, 1956, 1957. 1957.

Ontario Agricultural College. Dept. of Apiculture.

http://n2t.net/ark:/99166/w60m31jr (corporateBody)

After obtaining his Bachelor's degree from OAC in 1951, Herman Tiessen worked for one year in the Fruit and Vegetable Branch of the Ontario Department of Agriculture. He earned his Master's degree from Michigan State University in 1953 and his Ph.D. in 1955. Later that year, he joined the faculty of the Department of Horticulture at OAC. He died on Dec. 10, 1987. From the description of Graduate Studies - Ontario, 1951, with H. Tiessen, undergraduate, University of Toronto. 1951, 198...

Ontario. Dept. of Agriculture. Director of Research.

http://n2t.net/ark:/99166/w6b91x5t (corporateBody)

Ruhnke, G. N.

http://n2t.net/ark:/99166/w64m931c (person)