SYSTEMATICALLY SELECTED YEASTS. 71 



it in a rational manner into his brewery. If, however, this 

 treatise is written as I desired, it will convince him not only 

 that he himself is not in a position to carry out these difficult 

 operations, but that he must have the assistance of a specialist. 



It is now not difficult to obtain the necessary assistance. 

 Some breweries have fitted up laboratories of their own ; but 

 usually assistance is obtained from independent institutions, 

 and in most cases this is perhaps preferable. My methods are 

 carried out in the following laboratories : A. Jorgensen's 

 laboratory, Frydendalsvej, Copenhagen ; Detlefsen and 

 Meyer's laboratory, Copenhagen ; Hiepe and Miller's labora- 

 tory in Manchester ; Ancker and Bergh's zymotechnic 

 laboratory, Stockholm ; the Versuchsstationen in Weihen- 

 stephan, Berlin, Munich, Nuremberg, Augsburg, Hohenheim, 

 Prague, Odessa, and Vienna ; the practical school of brewing 

 at Munich ; Doemen's Brewing Academy at Munich ; the 

 school of brewing at Worms ; Ehrich's Versuchsstation for 

 brewing at Worms ; Eckenroth's laboratory at Ludwigshafen 

 on the Rhine ; Kokosinski's laboratory at Lille ; Laboratoire 

 de Brasserie de la Faculte* des Sciences at Nancy; Wahl 

 and Henius' laboratory at Chicago and Brewing Academy at 

 Milwaukee. There are, perhaps, several others unknown to 

 me, and my omissions must, therefore, not be regarded as 

 being due to want of consideration on my part. In addition 

 to those mentioned above, some laboratories and institutes 

 have recently been established, most of them in Germany, 

 which deal especially with the requirements of the distillery, 

 pressed yeast, and wine industries. I would ask those firms 

 which desire aid in the direction mentioned to apply to the 

 institutions and laboratories named. The Car Isberg laboratory, 

 as a scientific institution, is engaged in other directions, and 

 cannot undertake this work. 



I will also take this opportunity to state that, for this 

 reason, I can only exceptionally receive pupils, and these must 

 have had previous scientific training {physiologists, botanists, 



