The Masses of ${\mathrm{Li}}^6$, ${\mathrm{Li}}^7$, ${\mathrm{Be}}^8$, ${\mathrm{Be}}^9$, ${\mathrm{B}}^{10}$ and ${\mathrm{B}}^{11}$

The energy values of the two modes of disintegration of beryllium under proton bombardment, determined by electrostatic analysis, are used in connection with other selected energy release values to set up masses for some of the lightest atoms. It is shown that introduction of the revised electronic charge makes negligible changes (less than 0.07 percent) in the accepted range-energy curve for alpha-particles. It is assumed that the masses of H, D and ${\mathrm{He}}^4$ are 1.00813±0.00002, 2.01473±0.00002 and 4.00386±0.00006. The deduced masses are: $\{{\mathrm{Li}}^6=6.01670\mathrm{}\pm 0.00012,{\mathrm{Be}}^9=9.01474\mathrm{}\pm 0.00014\}\{{\mathrm{Li}}^7=7.01799\mathrm{}\pm 0.00011,{\mathrm{B}}^{10}=10.01579\mathrm{}\pm 0.00022\}\{{\mathrm{Be}}^8=8.00753\mathrm{}\pm 0.00013,{\mathrm{B}}^{11}=11.01244\mathrm{}\pm \mathrm{0.00019.}\}$ These masses are compared with several observed nuclear reactions and mass-spectrographic doublets.