6 
preface 
8. Detailed description of the pre-transfusion blood 
tests, including the discussion of blood typing of Jansky 
and Moss. 
9. More information about anaphylaxis, Besredka’s 
desensitization methods, and the application of anaphy¬ 
laxis to the diagnosis of hay fever and bronchial asthma. 
10. The chapter on Influenza has been rewritten, 
and a working classification of streptococci has been 
added. 
11. The relation of leucocytes to infections. 
Arthur A. Eisenberg. 
Cleveland, Ohio. 
PREFACE TO FIRST EDITION. 
While lecturing to the nurses at the St. Vincent’s Char¬ 
ity and St. John’s Hospitals, of Cleveland, I have been 
frequently compelled to either modify or add new sub¬ 
ject matter to that contained in various textbooks of 
Bacteriology for Nurses, or face a very unpleasant sit¬ 
uation of being told that “we can’t find in our book 
what you have told us.” This could be remedied, of 
course, to some extent, by referring the pupils to stand¬ 
ard books written for medical students, but, in the 
first place, the multiplicity of textbooks is hardly desir¬ 
able in teaching an elementary subject, and, in the 
second place, the information sought would usually 
be found intimately bound with much of what is de¬ 
cidedly “above their heads” and written in too technical 
a language to be readily accessible. 
I have felt, therefore, that it may be worth while to 
