It is stated that the object of this book is to draw clinical pictures, reconsider treatment and discuss the more promising lines for study of the etiology of pernicious anemia. Certain considerations of the subject are taken from the field of orthodox discussion. In the chapter on classifications, the lines are more sharply drawn than usual, and there is a clear explanation of the basis on which the division is made.
Authorities are quoted in support of the statement that the number of cases of pernicious anemia is not increasing, and that the condition rarely, if ever, is found in people under 20 years of age. The danger of diagnosing pernicious anemia in the presence of a positive Wassermann reaction without first using thorough antisyphilitic treatment is emphasized. Other points as to incidence considered are: the few instances among negroes; its relatively frequent occurrence among Americans, Canadians, English, Irish and