CROOKES’S HIGH VACUUM TUBES, showing the fluorescence of various minerals. A good selection always in stock, including several specialities.
SPECTRUM TUBES, GLASS BLOWING, “X-RAY” OUTFITS and TUBES, HIGH FREQUENCY APPARATUS and APPLICATORS, and other Scientific Instruments.
Experimental work of any kind in Glass or Metal.
RADIUM SALTS
and
Other Preparations and Minerals.
Radium Bromide, Radium-Barium Bromide, Radium-Barium Chloride, in Tubes of various quantities and strengths.
Phosphorescent Zinc Sulphide, 1 grm. and 5 grm. Tubes, and per oz.
Phosphorescent Zinc Sulphide, Screens.