The rate of energy loss for ²⁰Ne and ¹⁴N ions in the energy region of 0.4 to about 6 MeV has been measured in C, Al, Ni, Ag and Au. The ranges of the ions in the above elements were calculated by integrating the differential energy loss taking into account scattering and energy losses due to nuclear collisions. The rate of energy loss for ⁴He ions up to 2 MeV kinetic energy is reported and range curves in Al, Ni, Ag and Au up to 3 MeV are presented. Results on the energy loss of deuterons in Ag are used to extend the data at present available for protons to lower energies. The relative accuracy of the stopping power data is to about 1% and the absolute accuracy to better than 5%.