This Week's Books
fOFESSOR AND-RADE has written one of the first of Messrs. kin's interesting new series in the Sixpenny Library. The ion is a really brilliant monograph on a subject about which w average man- knows little, and should learn at least some- ;rig. His analogy--of an atom being- like a piano- draped and with curtains so as to be invisible -is very apt. The spery, of course, is the dance of satellite electrons which tend the microcosmic nucleus, as the sun is attended by e whirling worlds of our system. If we fire bullets through prtains we ascertain that behind them is something solid hich corresponds roughly to- the recent experiments with pha particles revealing the nuclear structure of the atom. gain, we can knock bits off the piano, which correspond to kie protons which can be chipped off atomic nuclei. A aniphlet so packed with the mysteries of matter cannot be roserly reviewed in this small space, but we may say in all tnfidence that a better sixpenn'oth has never been produced. Oh a little book must be largely a labour of love ; it could ply have been written by one who combined high technical ility with a vivid prose style, a, combination as rare as it delightful. Professor Andrale's larger work is reviewed our Lite:ary Supplement this wesk.
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