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became professor of game management at the University of Wisconsin in 1933 where he worked until his death.  This book was written during that time.</ref>

became professor of game management at the University of Wisconsin in 1933 where he worked until his death.  This book was written during that time.</ref>

The University of Wisconsin was a pioneer in the patenting and commercial licensing of university research. The Wisconsin Alumni Research Foundation (WARF) was founded in 1925 to licence professor Harry Steenbock's process for fortifying milk with vitamin D.<ref>[http://www.warf.org/about/index.jsp?cid=26 Our History], WARF website</ref> Another important WARF patent involved the blood anti-coagulating agent, dicumarol. The substance was discovered at the university in the 1933 by Karl Paul Link, after Ed Carlson&mdash;a farmer from Deer Park who was confident that the university would be interested in his problem&mdash;arrived unannounced on Link's doorstep bearing a milk can of blood from a dead calf and a hundred pounds of spoiled sweet clover. The drug was used first as a rat poison under the name Warfarin, then in human medicine under the name ''Dicoumadin.'' In 1999 it was the eleventh-most-prescribed drug in the United States.<ref>[http://www.uwalumni.com/home/coolstuff/askabe/askabe_people/askabe_people.aspx Ask Abe Archives - People], UW website</ref><ref>[http://www2.biotech.wisc.edu/alliance/plaques/1.php?id=9 Controlling Blood Clotting], photograph of historical plaque.</ref><ref>[http://books.nap.edu/openbook.php?record_id=4548&page=176 Biographical Memoirs of Karl Paul Link], uncorrected OCR at National Academy of Sciences: pp. 183-4, "Farmer Carlson's multiple evidence was a dead heifer, a milk can containing blood completely destitute of clotting capacity, and about 100 pounds of spoiled sweet clover.</ref>

The University of Wisconsin was a pioneer in the patenting and commercial licensing of university research. The Wisconsin Alumni Research Foundation (WARF) was founded in 1925 to license professor Harry Steenbock's process for fortifying milk with vitamin D.<ref>[http://www.warf.org/about/index.jsp?cid=26 Our History], WARF website</ref> Another important WARF patent involved the blood anti-coagulating agent, dicumarol. The substance was discovered at the university in the 1933 by Karl Paul Link, after Ed Carlson&mdash;a farmer from Deer Park who was confident that the university would be interested in his problem&mdash;arrived unannounced on Link's doorstep bearing a milk can of blood from a dead calf and a hundred pounds of spoiled sweet clover. The drug was used first as a rat poison under the name Warfarin, then in human medicine under the name ''Dicoumadin.'' In 1999 it was the eleventh-most-prescribed drug in the United States.<ref>[http://www.uwalumni.com/home/coolstuff/askabe/askabe_people/askabe_people.aspx Ask Abe Archives - People], UW website</ref><ref>[http://www2.biotech.wisc.edu/alliance/plaques/1.php?id=9 Controlling Blood Clotting], photograph of historical plaque.</ref><ref>[http://books.nap.edu/openbook.php?record_id=4548&page=176 Biographical Memoirs of Karl Paul Link], uncorrected OCR at National Academy of Sciences: pp. 183-4, "Farmer Carlson's multiple evidence was a dead heifer, a milk can containing blood completely destitute of clotting capacity, and about 100 pounds of spoiled sweet clover.</ref>

[[image:Birgejuday.jpg|left|thumb|E. A. Birge and Chancey Juday, UW limnology pioneers, operating a plankton trap]]

[[image:Birgejuday.jpg|left|thumb|E. A. Birge and Chancey Juday, UW limnology pioneers, operating a plankton trap]]