细节
A Wimshurst electrostatic induction machine of small size,
8¼in. (21cm.) wide: an oxygenerator by Jules Richard in case; a fuze tester in case; a Sikes' hydrometer in case; and an instrument by Arnold & Sons in case (5)
8¼in. (21cm.) wide: an oxygenerator by Jules Richard in case; a fuze tester in case; a Sikes' hydrometer in case; and an instrument by Arnold & Sons in case (5)