Biology Laboratory in Old Main, ca 1905
St. Olaf College News Bureau
May 18, 1959
Upper Midwest farmers who have just seeded their corn fields might be interested in this photo of six-week-old corn plants taken in a St. Olaf college biology lab. Both samples developed from the same brand of well-known hybrid seed; they both received the same amount of water and fertilizer. The difference in growth resulted when the plants on the left were injected with corn smut at the age of three weeks. A regular hypodermic needle was used for the study. The two students are part of a class in mycology, studying various forms of fungus.
Text with photo
With magnifying glass in hand, a St. Olaf biology student ponders over the history etched in tree growth rings. By close examination, students found 119 rings in this oak slab. One ring is an annual growth, but weather and soil conditions each year affect the size of the rings greatly. Editorial dept
Additional info in photograph – from left to right
Kittlesby and Kildahl 1957, Boe Memorial Chapel 1953, Rolvaag Memorial Library 1942, WCAL Radio Building 1931, Holland Hall 1925, Ytterboe Hall 1900, Old Main 1878, St. Olaf College founded 1874
Text on back of photo – Professor Howard Orr changes the recording disc on device to record environmental changes. It records each movement of the mice in the cages shown at the bottom of the picture. Mice can look out plastic windows placed at intervals in the runways. A nest box for each mouse is located at the end of each runway. 1961
Text on back of photo – St. Olaf biology student pulls a 50-yard cord releasing a gopher which had been kept for one week in an artificial gopher hole. The long cord is necessary to avoid frightening the gopher unnecessarily and to allow the student to observe the gopher’s natural movements when released. 1961
Middle and far right photos were taken in 1977
L – Summer research 1977, Far right – Walking sticks. Top one is from New Guinea, bottom one is local, ca 1960