Shutt, Chemical News, December 10, 1909, determined the nitrogen in the rain and snow that fell near Ottawa, Canada, during a portion of the year 1906 and 1907. It occurred to us it might be interesting and profitable to study the precipitations of Mount Vernon, Iowa. The investigation was begun on January 12, 1910, and was continued for one year with the exception of the months of May, June, July and August. These were extremely dry months and we regret very much not to have been able to secure a sample of the heavy rainfall which broke the long drought, during the latter part of August.
Proceedings of the Iowa Academy of Science
©1911 Iowa Academy of Science, Inc.
"Nitrogen in Rain and Snow,"
Proceedings of the Iowa Academy of Science, 18(1), 75-77.
Available at: https://scholarworks.uni.edu/pias/vol18/iss1/15