Boyle's Law apparatus by Philip Harris and Co, Birmingham. 'Mercury Vapour' written on wooden stand Boyle's Law apparatus by Philip Harris and Co 1900-1913
Battery in mahogany box, with lower panel containing sliding switch galvanometer and 2 terminals, by Philip Harris & Co. Ltd., 144 and 146 Edmund Street, Birmingham, England, 1880-1890. Battery in mahogany box 1880-1890
Apparatus for producing artificial pneumothorax, in case, Heaf's type, by Philip Harris and Co. Ltd, Birmingham Apparatus for producing artificial pneumothorax
Vapour pressure of water, Regnault's apparatus by Philip Harris & Co.Ltd., Birmingham, England Vapour pressure of water 1900-1943
Apparatus to show the rotation of a magnetic pole around an electric current, by Philip Harris and Co. Ltd., Birmingham, England Apparatus to show the rotation of a magnetic pole around an electric current 1900-1943
Dulong and Petit's apparatus, modified form, for measuring the absolute coefficient of expansion of mercury, by Philip Harris and Co. Ltd., Birmingham, England Dulong and Petit's apparatus 1900-1943