LAND AND OTHER AGENTS OF PRODUCTION 209 



that there is no early danger of a nitrogen famine. The continued 

 perfection of the processes and the appearance at frequent intervals 

 of novel additional methods, as well as the popularization of the new 

 forms of combined nitrogen, all point to a steady movement forward 

 and to the assurance that combined nitrogen, as an industrial product, 

 will be furnished on an increased scale without advance in cost above 

 existing rates as fast as the demand is evident. 



