Trees

Chicago Council Tree
Dome of the 100-inch Hooker Telescope at Mount Wilson Observatory
View of Throop Hall at California Institute of Technology
Earthquake disaster flood in the El Melon Aconcagua Valley
View of the Leiden Observatory
Buildings at Las Campanas Observatory
Buildings at Las Campanas Observatory
Hedwig Kohn with family members
Hedwig Kohn with family members
Hedwig Kohn with family members
Hedwig Kohn with school class outdoors
Hedwig Kohn and Frau Senftleben sitting by trees
Forest in the Foreground with Town and River Beyond
Forest in the Foreground with Town and River Beyond
Heidelberg Street Scene
Einstein Walking
Einstein in Study at Home
William Meggers outdoor with pick axe

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