469. Sprinkling, Project Data, Mms. Bulletin 405A, Code, folder 2 of 2
Correspondence between W. E. Code and sprinkler irrigation experts and manufacturers, including E. H. Kidder and H. M. Clark, as well as drafts of "Sprinkler Irrigation" by W. E. Code and A. J. Hamman, published as Colorado Extension Service Bulletin No. 405A "When to Use Sprinkler Irrigation in Colorado"