Public domain
Chemical laboratory, Michigan School of Mines [i.e. Michigan Technological University], Houghton, Mich.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Subjects
Credit lineChemical laboratory, Michigan School of Mines [i.e. Michigan Technological University], Houghton, Mich.. 1900-01-01. Detroit Publishing Co.. Detroit Publishing Company Collection, Library of Congress. Public domain.