2 CASEIN. 



sale of casein and its products in the United States, has now 

 to face the energetic competition of the wealthy Union Casein 

 Company, which is said to have made buying contracts with 

 large dairies for several years ahead. A capable chemist, with 

 a wide knowledge of the patent literature of the subject, has 

 been engaged. The Casein Company of America has taken 

 out a large number of patents, covering nearly the whole 

 ground, from the precipitation of the casein from milk to the 

 production of mechanical mixtures of casein, and utilises these 

 patents as a means of bringing pressure to bear on small 

 dairies. Casein already forms an important article of com- 

 merce in America, especially in paper-making, the manufacture 

 of sized papers, painting the ends of sugar barrels, and so 

 forth; but for these purposes production on a large scale is 

 indispensable. Owing to the highly diversified uses of casein 

 those of a technical character being naturally the first to be 

 considered, it seems desirable to divide the present work into 

 a series of chapters, each complete in itself, as follows : 



The preparation and properties of casein ; followed by its 

 application : 



As a painting material ; 



As mucilage and cement ; 



In the preparation of plastic masses, as a substitute for 

 horn, ivory, celluloid, etc., with special attention to 

 "Galalith"; 



As a dressing and colour-fixing medium in the textile 

 industry ; 



As a foodstuff; and for various purposes that cannot be 

 grouped in the foregoing classification. 



Finally, a summary will be given of most of the known 

 compounds of casein with chemical elements, their salts, etc., 

 and organic compounds which may become useful in time 

 to come. Wherever possible, the scattered literature of the 

 subject has been drawn upon and included. 



