A HISTORY OF SCIENCE 



however, with the work of the allied institution of 

 which I now come to speak. The Institute of Hygiene 

 deals with topics not very remote from those studied in 

 the Virchow Institute, part of its work, indeed, falling 

 clearly within the scope of pathology ; but it differs in 

 being clearly comprehensible to the general public and 

 of immediate and tangible interest from the most strict- 

 ly utilitarian stand-point, hygiene being, in effect, the 

 tangible link between the more abstract medical 

 sciences and the affairs of e very-day life. 



The Institute of Hygiene has also the interest that 

 always attaches to association with a famous name, 

 for it was here that Professor Koch made the greater 

 part of those investigations which made his name the 

 best known, next to that of Pasteur, of any in the field 

 of bacteriology. In particular, the researches on the 

 cholera germ, and those even more widely heralded 

 researches that led to the discovery of the bacillus of 

 tuberculosis, and the development of the remedy tuber- 

 culin, of which so much was at first expected, were 

 made by Professor Koch in the laboratories of the 

 antiquated building which was then and is still the 

 seat of the Institute of Hygiene. More recently Pro- 

 fessor Koch has severed his connection with the in- 

 stitution after presiding over it for many years, having 

 now a semi-private laboratory just across from the 

 Virchow Institute, in connection with the Charite 

 Hospital; but one still thinks of the Institute of Hy- 

 giene as peculiarly the "Koch Institute" without in- 

 justice, so fully does its work follow the lines laid out 

 for it by the great leader. 



But however much the stamp of any individual per- 



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