ESSENTIALS OF BACTERIOLOGY: 



CONCISE AND SYSTEMATIC INTRODUCTION TO THE 

 STUDY OK MICRO-ORGANISMS 



FOR THE USE OF 



STUDENTS AND PRACTITIONERS. 



BY 



M. V. BALL, M.D., 



PHYSICIAN TO THE EASTERN STATE PENITENTIARY AT PHILADELPHIA. 



SECOND EDITION. 



WITH EIGHTY-ONE ILLUSTRATIONS, SOME IN COLORS, 

 AND FIVE PLATES. 



LONDON 



HENRY K 



82, HIGH HOLBORN, W. C 



1895. 



(Printed in U. S. A.) 



