London, Hurst & Blackett, 1922. First edition, first impression. Hardback. A very good copy. A mad professor tale which finds our protagonist trying to make artificial life. Uncommon in the jacket. Some chipping to the top of the spine, and some chipping to the corners. General edgewear to the jacket, and some dustiness to the top edge. A little tanning to the boards and some offsetting to the endpapers. [10952, Hyraxia Books].