The Preservation of Wood. EXPERIMENTS WITH THE 'SCIENTIFIC TOP:' viewing the reflection of the flame in the revolving Electric Phosphorescence. Good Prospect for a Swiss Patent Law. V5 \ Fig. 2SECTION OF DIA PHRAGM CELL. Fig. 1TOP WITH REVOLVING MIRRORS—Xi:WIG% MANOMETRIC FLAMES., scientific american, 1887-08-20


The Preservation of Wood. EXPERIMENTS WITH THE 'SCIENTIFIC TOP:' viewing the reflection of the flame in the revolving Electric Phosphorescence. Good Prospect for a Swiss Patent Law. V5 \ Fig. 2SECTION OF DIA PHRAGM CELL. Fig. 1TOP WITH REVOLVING MIRRORS—Xi:WIG% MANOMETRIC FLAMES., scientific american, 1887-08-20


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