N.E. Hansen with a local man while conducting pear research at Saolin in northern China in 1924
Local man assisting N.E. Hansen while he conducts pear research at Saolin in northern China in 1924
Man waiting near the Trans-Siberian Railway in north China in 1924
Temple in Seoul, Korea in 1924
Point on the Inland Sea in Japan in 1924
Village on the Inland Sea in Japan in 1924
Ships at port in Tokyo Bay at Yokahama, Japan in 1924
Steamer ship at the port on Tokyo Bay at Yokohama, Japan in 1924
Steamer ship at the port on Tokyo Bay at Yokohama, Japan in 1924
Steamer ship at the port on Tokyo Bay at Yokohama, Japan in 1924
Steamer ship at the port on Tokyo Bay at Yokohama, Japan in 1924
Apple specimen, undated
Two Karakul fat tailed sheep of Turkistan, undated
N.E. Hansen and Ivan V. Michurin in Russia in 1934
N.E. Hansen in Chelyabinsk, Russia in 1934
N.E. Hansen and Ivan V. Michurin in Chelyabinsk, Russia in 1934
N.E. Hansen with friends in Brookings, South Dakota in 1939
N.E. Hansen in Siberian costume with a sheaf of alfalfa in 1906
Professor N.E. Hansen, undated
Professor N.E Hansen on the horticulture grounds at South Dakota State College, undated
Recognition service for Dr. N.E. Hansen at South Dakota State College in 1949
Dr. N.E. Hansen at a horticultural display, undated
Dr. N.E. Hansen in a South Dakota State College greenhouse, undated
William H. Powers Papers
Marilyn Richardson Papers
Plant specimen: Aceraceae Neck. Acer Ginnala Max. Plant specimen from the maple family
Plant specimen: Aceraceae Neck. Acer Mons Max. Plant specimen from the maple family
Plant specimen: Caprifoliaceae Vent. Lonicera edulis Turcr. Plant specimen from the honeysuckle family
Plant specimen: Caprifoliaceae Vent. Lonicera Maackii Turcr.
Plant specimen: Primulaceae Vent. Primula.
Plant specimen: Rosaceae B. Juss. Prunus padus L.
Carter Johnson at Sica Hollow State Park in South Dakota
Forest Understory, Warren Keammerer
Badlands National Park
Sheyenne River North Dakota Geology Field Trip
Devils Lake before Flooding
North Dakota Farm Effects of Grazing
Sica Hollow State Park Nebraska and South Dakota
Strawberry Plant Colorado Rocky Mountains
Cushion Plant, Alpine, Colorado Rockies
Alpine Tundra near Niwot Ridge Colorado Rocky Mountains
Alpine Tundra Plant Rocky Mountain Colorado
Sedge Hummocks Colorado Alpine Tundra
Vegetation and Stream Colorado Rocky Mountains
Colorado Rockies
Evergreen Forests in Colorado Rocky Mountains
Dr. John Marr Lecturing to Alpine Ecology Class
Columbine, Colorado State Flower
Cushion Plant, Colorado Alpine
Tiny Primrose Alpine Rocky Mountains
Bristlecone Pine near Timberline James Peak, Colorado
James Peak in Colorado
Colorado Rockies
Alpine tundra in Colorado
Stone nest in Colorado
Bill Lauenroth and Jerry Van Amburg conducting research
Uvularia sessiliflora
Zizia aptera
Fossils on the Iowa River
Prairie Coteau stream
Tall Grass Prairie Coteau
Prairie Coteau
Sanguinaria canadensis
Sanguinaria canadensis
Sanguinaria canadensis
Caltha palustris
Caltha palustris
Arisaema atrorubens
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Research stand on the Missouri River
Ice damaged trees on Missouri River from 1952 flood
Vegetation on old cottonwood at Garrison Reach, North Dakota
Floodplain marsh at Garrison Reach, North Dakota
Emergent cottonwood at Garrison Reach of the Missouri River, North Dakota
Missouri River at Garrison Reach, North Dakota
Missouri River at Garrison Reach, North Dakota
Hayland near the Missouri River
Garrison Reach of the Missouri River in North Dakota
Garrison Reach of the Missouri River in North Dakota
Oahe Reservoir backup at Garrison Reach of the Missouri River, North Dakota
Oahe Reservoir backup at Garrison Reach of the Missouri River, North Dakota
Oahe Reservoir backup at Garrison Reach of the Missouri River, North Dakota
Warren Keammerer at Painted Woods Lake
Warren Keammerer changing a flat tire
Shepherdia argentea
Shepherdia argentea
Chrysopsis villosa
Amorpha canescens
Rosa woodsii
Petalostemum purpureum
Ratibida columnifera
Sphaeralcea coccinea
Castilleja sessiliflora