viii. INTRODUCTION TO FRENCH EDITION 



I have experienced at the hands of a large number of 

 our ministers, consuls, or consular agents abroad the most 

 cordial reception on repeatedly addressing myself to them 

 in order to obtain the papers or information of which I was 

 in need. It is only right for me to thank them for it, 

 and to acknowledge the trouble that M. Masson has most 

 kindly taken in publishing this book. 



Institut Pasteur de Lille, A. Calmette. 



March 10, 1907. 



