Note 7 — INTRODUCTION.
Reading edition
Some portions of it I have already amplified: in a pamphlet entitled "The Underground Life," Edinburgh, 1892 (privately printed); in a paper on "Subterranean Dwellings," contributed to The Antiquary (London: Elliot Stock) of August 1892; and at pp. 52-58 of "The Aïnos," previously quoted.