PREFACE This Booklet has been written and compiled for the use of any student or layman who seeks concise and clear information on the history of Influenza. Brief and salient facts are set forth relating to “Flu” epidemics and pandemics: other collateral features have also been discussed, connected with or bearing upon this subject. Honolulu, Hawaii, U. S. A., 1921. - A. Mouritz Notes: Much of the material in "The Flu" is still relevant today, like pandemic terminology, thoughts about causes and micro-organisms, the flu's relationship with pneumonia, the impact on society, and approaches to treatments "The Flu" is included in the Surgeon General's Library at the U. S. National Library of Medicine omitted Chapter 5 to retain the primary purpose as stated in the title and Preface, and subtract secondary material