folk, rike (1923-5). (English edition in 1913, showed that some- times as large as Uranus—and the correspond- ing organisation) being given unit value, thus— Hydrogen H =1-006 Chlorine Cl=35-46 Carbon C=12 Sulphur . S=32 Nitrogen N=I4 Calcium . Ca=4o Oxygen O=16 Properties of Metals,” in