Oxford: At the Clarendon Press 1937. xi, 270,  pages. 8vo. Publisher's blue cloth. Spotting to the endpapers, otherwise clean internally. The dust jacket, while present, is a mere shadow of it's original self. Internally taped in many places with modern cellotape, chipping, creasing, wear. Spine sunned with large chip missing. Nonetheless this book is not often found with any dust jacket. Very Good / Fair. Cloth. 
A first printing of the Second edition. This is a case where owning the first and later editions makes great sense for the scholar and collector. As noted in the Preface, the neutron was discovered after the first edition was published, "completely chang[ing] our views on the nature of the fundamental constituents of heavy nuclei...All this made it necessary to rewrite the whole book completely, increasing its volume more than twice...In fact, whereas in writing the first edition the author felt unhappy because there were not enough experimental facts and theoretical conclusions, ne now feels that there are perhaps too many."