CLAY, HENRY . Economics for the General Reader. Macmillan . Page 164. A good short account of money from the standpoint of the economist.
2.
EINZIG, PAUL . Primitive Money. Eyre & Spottiswoode, N.D. , 1949. Page 353 et. seq. Einzig is more cautious than Hingston Quiggin, and, though he reaches substantially the same conclusion, he draws attention to the many sources on which money can depend for its value: it is a wholesome corrective to any facile generalisation. I am inclined to think that the concept of the basic assumptions might throw light on a subject the complexity of which is better displayed by Einzig than by Hingston Quiggin.
3.
GIBBON, EDWARD . The Decline and Fall of the Roman Empire. Methuen , 1909 Edition. Vol. II. Page 373. An historical study of disputes about the nature and attributes of deity would go far to clarify many of the points I would like to make about the nature of baD.
See also PETIT-DUTAILLIS . Studies Supplementary to Stubbs' Constitutional History, Manchester University Press , 1911. Pages 36-38. Although the subject is a commonplace in most studies of constitutional history there is little material in any of it which is really helpful in providing either confirmation or refutation of any attempt to relate Wergild with a basic assumption.
7.
TOYNBEE, ARNOLD . A Study of History. Oxford , 1935 Edition. Vol. I. Page 12. And also p. 17. Toynbee's discussion of what constitutes an intelligible field of study in history can be taken to apply equally well to the study of the psychology of the group.
8.
WITTKOWER, ERIC . A Psychiatrist Looks at Tuberculosis. The National Association for the Prevention of Tuberculosis, London , 1949. This recent study provides plenty of material on which to form tentative judgments about the validity of my theories of the psychological affiliations of disease.