13 results
Search Results
Now showing 1 - 10 of 13
Item Flax Culture(North Dakota State University, 1906) Bolley, Henry Luke, 1865-1956Item Flax Production in Argentina(North Dakota State University, 1931) Bolley, Henry Luke, 1865-1956Item Flax Cropping, Harvesting Methods(North Dakota State University, 1914) Bolley, Henry Luke, 1865-1956; Wilson, M LItem Flax and Flax Seed Selection(North Dakota State University, 1903) Bolley, Henry Luke, 1865-1956Item Leafy spurge : life history and habits(North Dakota State University, 1933) Hanson, Herbert C.; Rudd, Velva E.A study of the life history and structure of leafy spurgeItem Cropping to Flax on New Lands of Semi-Arid Land Areas(North Dakota State University, 1913) Bolley, Henry Luke, 1865-1956; Wilson, M.L.Item Recipes from Many Lands Furnished by North Dakota Homemaker's Clubs(Agriculture Extension Division, North Dakota Agricultural College, 1927-07)Item Chemical Analysis of Soils Contaminated With Oilfield Brine(North Dakota State University, 1989) Doll, E. C.; Thomas, Linda R.; Nash, Zann K.; Lang, K. J.Item Flax For Seed and Oil(North Dakota State University, 1915) Bolley, Henry Luke, 1865-1956Item Tree Ring Studies in North Dakota(North Dakota State University, 1946) Will, GeorgeA number of years ago, Dr. A. E. Douglas, a professor of Astronomy and Research Fellow of the Carnegie Institution first made public a method of reading weather data from tree rings in sequoias. This was followed by his work with ponderosa pine, principally on the Colorado plateau. This latter phase of his work led to the dating of old Pueblos and Cliff dwellings by comparison of the rings in old house timbers with those of already known dates in the series worked out in meteorological studies. In the continuation of that work a definite calendar of building dates for many of the old ruins has been worked out for a period of nearly two thousands years. The article focuses on the process of studying tree rings.