• ASHA - Ruralcap Rammed Earth Report No. 1 and H-Plan House Comments, April-September 1968

The Anthony S. Dylla Papers document research efforts related to irrigation systems, soil analysis, and agricultural water management primarily in Minnesota and surrounding regions. Topics include sprinkler and rotating-boom irrigation, evapotranspiration measurements, soil moisture sensing, nitrogen inputs and leaching, and the effects of wind on irrigation uniformity. The collection highlights Dylla’s contributions to advancing knowledge in hydraulic conductivity, soil classification, and irrigation automation. Also present are publications addressing broader agricultural issues such as drought-hazard soil properties, water seepage control with bentonite, and forage water use studies in Nevada.

Dylla’s research played a key role in improving irrigation strategies in the Upper Midwest, contributing to more sustainable water use in agriculture. His work informed both regional practices and national USDA recommendations, particularly in soil-water dynamics, nitrogen management, and experimental methodology for extension professionals.

By A.S. Dylla and D.W. Michener

by M.B. Rollins and A.S. Dylla

by A.S. Dylla, H. Shull, D.R. Timmons

University of California Agricultural Extension Service

• DeLong honored at SDSU, 1988
• Rammed walls, undated
• DeLong Honored for Mare the 40 Years of Service to SDSU, 1971
• Obituary, 1988
• Vita
• Oldest Living Graduate, decades don't dig a sharp memory for 103-year-old DeLong, 2011
• SDSU Professor One of 15 Nationwide Honored by Body, 1974
• Portrait, 4 black-and-white negatives, April 30, 1975
• Portrait, 6 black-and-white negatives, December 22, 1966
• Portriat, 10 black-and-white negatives, undated

by D.M. Stuart, G.E. Schuman, and A.S. Dylla

• Agricultural Engineering Staff, South Dakota State College, for Farm Structures Materials Hankbook

by A.S. Dylla, Hollis Shull

by A.S. Dylla, D.R. Timmons, and H. Shull

by A.S. Dylla and D.M. Stuart

University of California Agricultural Extension Service

by M.B. Rollins and A.S. Dylla

The H. H. DeLong Papers are comprised of research, publications, and professional activity related to rammed earth construction, with a strong focus on agricultural and rural building applications. Materials include bulletins, circulars, extension publications, engineering data, research reports, manuals, and bibliographies dating from 1919 to 1988, with some later contextual material through 2011. The publications were issued by land grant universities, federal and state agencies, international organizations, and research institutions, including South Dakota State College, the United States Department of Agriculture, Texas A and M University, the University of California, and the United Nations. Subjects addressed include soil composition, construction techniques, structural performance, building finishes, housing design, and applications of rammed earth and related earthen building methods such as adobe, cob, and pisé de terre. The collection also includes news articles highlighting rammed earth projects and public interest in the method. Biographical materials related to Henry Herbert DeLong are present, including clippings, honors, obituary material, a curriculum vitae, and portrait photographs, documenting his professional career and recognition for contributions to agricultural engineering and rammed earth research.

The collection provides documentation of twentieth century research and practical guidance on rammed earth construction in agricultural and rural contexts, reflecting the role of land grant institutions and government agencies in promoting cost effective and locally sourced building materials. The inclusion of publications authored by or associated with Henry Herbert DeLong documents his contributions to the development and dissemination of rammed earth construction methods and their application in the United States. The materials support research in agricultural engineering, sustainable building practices, rural housing, and the history of earthen construction technologies.

• United Nations Bulletin No. 4, October 1950

by A.S. Dylla and J.C. Guitjens

• Texas Engineering Experiment Station Research Reports

by Hollis Shull and A.S. Dylla

U.S. Department of Interior, U.S. Department of Agriculture

by A.D. Dylla, D.R. Timmons, and H. Shull

• by Kydia A. and David J. Miller

by D.R. Timmons and A.S. Dylla

by D.R. Timmons and A.S. Dylla

by A.S. Dylla, H. Shull, D.R. Timmons

by Dean C. Muckel and A.S. Dylla

by A.S. Dylla, D.E. McMartelaere, and C.K. Sutton

by A.S. Dylla and Rhys Torey

• Bulletin 298: The Relation of Colloids in Soil to its Favorable Use in Pise or Rammed Earth Walls, March 1936
• Bulletin 336: Paints and Plasters for rammed Earth Walls, May 1940
• Extension Circulat 362: Poultry Houses for South Dakota, March 1937
• Circular 42: New Hard Surfaced Floors for the Farm Poultry House, January 1943
• Bulletin 277, Revised: Rammed Eart Walls for Farm Buildings, June 1945
• Bulletin 393: Hard-Surfaces floors for Farm Buildings, May 1949
• Circular 149: Rammed Earth Walls, April 1959
• USDA Bulletin No. Rammed earth Walls for Buildings, August August 1926
• Tezas A&M Bulletin No. 99: Adoba as a Construction Material in Texas, 1945
• USDA Bulletin No. 1720: Adobe or Sun-dried Brick for Farm Buildings, January 1934
• USDA Leaflet 535: Building with Adobe and Stabilized-earth Blocks, December 1965
  Department of Scientific and Industrial Building Research Special REport No. 5: Building in Cob and Pice de Terre, 1922
• University of California Experiment Station Bulletin 472: Adobe Construction, January 1941

• Soil Admixtures for Earth Walls, September 1942
• Puddled-earth and Rammed Earth Walls, August 1939
• Rammed earth revisited, winter 1994
• Hankbook for Building Homes of Earth, undated
• Rammed Earth, A Selected Bibliography, 1982
• Cottage Building in Cob, ise, Chalk, and Clay, 1919

• SD High Liner: Rammed earth houses were economical and ecological, September 1976
• RFD News: Rammed earth wall featured at SDSU, September 15, 1988

by A.S. Dylla

• by H.H. DeLong, 1st asummer tgerm, 1941

by Hollis Shull and A.S. Dylla

by A.S. Dylla, D.M. Stuart, and D.W. Michener

The Irrigation Association Technical Conference Proceedings

Hollis Shull and A.S. Dylla