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Keywords from Image Description:
Annual report . KNECHl'EL PHOTO RAFT OF LONG TIMBER ON THE RHINE AT BONN GERMANY 'ktjJS Sir'nt 'rA'thx MOSER PHOTO PLANT FOR IMPREGNATING WOOD WITH PRESERVATIVE SOLUTION TREATMENT OF TELEGRAPH POLES SIHLWALD SWITZERLAND Illustration thth biodiversitylibrary org New York State Biodiversity Heritage Library Annual