x pages, 1 leaf, 216 pages : plates, folded map. ; 20 cm
OCLC
ocm02735750
Embodies the substance of a course of lectures at Cambridge in March 1926. The first draft of the text was dictated by the author shortly before his death and could not be revised by him. cf. Translator's preface, signed: I.L. Evans, M.P. Charlesworth.