A. KNECHl'EL, PHOTO. 



RAFT OF LONG TIMBER, ON THE RHINE. 



AT BONN, GERMANY. 



*>■ 



'ktjJS^Sir'nt 'rA'thx*. 



A. MOSER, PHOTO. 



PLANT FOR IMPREGNATING WOOD WITH PRESERVATIVE SOLUTION. TREATMENT 



OF TELEGRAPH POLES. 



SIHLWALD, SWITZERLAND. 



