FIRST EDITION. 8vo, pp. [180]. Green cloth, black lettering and ruling to spine, single blind ruling to upper board. Pushing to heel of spine, faint stain to upper board. Top edge dusty, else, clean and tidy. A pleasing copy of Lodge’s introduction to things etherial or etheric (but not ethereal, “because the ether is dealt with not as a rarefied essence but as a substance with ascertainable physical properties”) for the non-expert.