A gathering of the notes and papers published by Felix D'Herelle since 1917 > 1921
Translated and and published in 1922 from the 1921 French version with the following changes: The bibliography has been extended, and in many of the chapters new experimental evidence has been introduced, embodying work completed since the publication of the French edition. In addition, a wholly new chapter has been prepared dealing with the "Nature of the Bacteriophage"
Changing your lifestyle can often make a great difference to your symptoms
