~ tracking down this book ~
only cover on file
Perpetuum Mobile; Or, A History of the Search for Self-motive Power from the 13th to the 19th ...
by Henry Dircks
1870406 pages~7½h read
only cover on file
Perpetuum Mobile; Or, A History of the Search for Self-motive Power from the 13th to the 19th ...
by Henry Dircks
1870406 pages~7½h read
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