326 Farm Poultry 



considered the best ones, especially the preserva- 

 tion in a solution of water-glass, as varnishing the 

 eggs with vaseline takes too much time, and the 

 treatment with lime-water sometimes communi- 

 cates to the eggs a disagreeable odor and taste." 



Water-glass* "We tried the keeping of eggs 

 with sodium silicate (water-glass) with good results. 

 Sodium silicate is a compound containing silicon, 

 sodium and oxygen in the proportion of one, two 

 and three respectively. It can be purchased from 

 druggist's in the form of a semi-fluid resembling 

 thick sugar syrup, for which it might easily be 

 mistaken. . 



"An experiment was conducted in our depart- 

 ment for the purpose of determining the most 

 effective degree of concentration. The result of 

 the experiment is of considerable importance, inas- 

 much as the cost of the mixture may be greatly 

 reduced without destroying its value. 



"On the 27th of May, we took twelve dozen 

 eggs, all known to be perfectly fresh, and prepared 

 the following solutions: 



No. 1. One part of water-glass in the semi-fluid form to ten 



parts water. 

 No. 2. One part water-glass in the semi-liquid form to fifteen/ 



parts water. 

 No. 3. One part water-glass in the semi-liquid form to twenty 



parts water. 



* 24th Annual Report Ontario Agricultural College, pp. 193, 194. 



