SCIENCE AND INDUSTRY. 
(4) In collaboration with the responsible organizations of the 
by-product _ammonia industries, definite standards of 
efficiency in ammonia recovery should be formulated (based 
upon the qualities of coal in use and upon good average 
practice realized under the conditions in force at by-product, 
recovery installations of various classes and sizes), and all 
works contributing towards the home supplies of ammonia 
should be required to conform to appropriate standards of 
recovery. When such standards have been formulated, 
powers should, if necessary, be conferred upon the Local 
Government Board to insure their obseryance. 
(5) Encouragement should be given to all efforts to extend the 
use of coal gas and coke in the place of raw coal for domestic 
purposes, for steam-raising, and for other industrial require- 
ments. 
AA fain 
NT 
226 
