Effect of Pressure on the Electrical Resistance of Metals at Liquid Helium Temperatures

The effect of pressures up to 5000 kg/${\mathrm{cm}}^2$ on the electrical resistance of polycrystalline copper, silver, gold, and platinum and on single crystals of arsenic, antimony, and bismuth has been measured at liquid helium temperatures. The pressures were generated by a piston and cylinder arrangement using solid hydrogen as the pressure transmitting medium.