10-004. 'BOYLES' PATENT AIR PUMP VENTILATOR' DEMONSTRATION MODEL
10-005. SINGLE BARREL VACUUM PUMP & BELL JAR BY ALOIS KREIDL
10-006. LACQUERED BRASS MAGDEBURG HEMISPHERES
10-030. POLARIZATION DEMONSTRATION APPARATUS BY J. DUBOSCQ
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10-010. LARGE POLARISER & ANALYSER FOR OPTICAL BENCH
10-022. CROOKES' RADIANT MATTER TUBE No. 2A BY L. CASELLA
10-025. CROOKES' NOVELTY TUBES
10-026. DEMONSTRATION ASTATIC GALVANOMETER BY F.E. BECKER & CO.
10-029. VERTICAL NEEDLE TELEGRAPH DEMONSTRATION SET BY NEWTON & CO.
10-031. CROOKES-PATTERN SPINTHARISCOPE BY PHILIP HARRIS, LTD.
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