London: John Murray. Second printing, March, 1920 (first was Jan., 1920). Brown cloth. xii, (230), (6, ads) pp. Spine a bit age-darkened; lacking the front free endpaper; ink name to half title leaf; text paper a bit yellowed; binding has light rubbing to spine tips, small bruises to outer corners; VG copy otherwise. Soddy won the 1921 Nobel Prize for Chemistry 'for his contributions to our knowledge of the chemistry of radioactive substances, and his investigations into the origin and nature of isotopes', and coined the word "isotope".

Bruxelles, Belgium. [1958]: L. Cuypers, 1958. 202 p., [36] p. of plates (1 double) : ill. (some colour), map ; 29 cm. Red leather grain cloth. Fine copy. Chemical industry in Belgium. Note: 2 kg parcel, extra postage will be required.; Squarish quarto

Berlin: Springer, 1995. Brown printed boards. pp 255, index. Fine copy. In print (2018) at USD 140.00, ; Octavo 3540589082

Clarendon Press (Oxford University Press), 1948. Second printing (first was in 1946). Black cloth. pp viii, 295. Index. A fine, jacketless copy. William Alexander Waters FRS, was a pioneer in the study of organic free radicals in solution, working at the Universities of Cambridge (1924-7, PhD 1927), Durham (1928-1945, on war work from 1939) and Oxford (1945-1970).; Octavo

Berlin: Springer, 1985. Printed cloth. pp 435, index. Small bump to one outer corner, else fine. ; Octavo 0387154108

Berlin: Springer, 1988. Blue printed boards. pp 804, index. Minor rubbing at spine ends, else fine. 2 kg parcel. ; Thick octavo 354017723x