FOOD FOR PLANTS 



95 



to be self-sustaining. Early last century an all-land 

 haul of 500 miles from Philadelphia to Pittsburg on 

 a ton of goods cost $125.00. Europe and the U. S. 

 have more railway mileage than any other portions 

 of our earth. The highly organized economic devel- 



Hedge of California Privet Three Years Old, Fertilized for 

 Three Years with Nitrate. New Jersey. 



opment of these portions of our globe has been most 

 remarkable. To a large extent it has been in propor- 

 tion to the development of transportation facilities. 

 The railway man has an opportunity for observa- 

 tion wider by far than the average citizen and his 

 views by virtue of this opportunity are bound to be 

 broadminded. His opportunities for service are 

 therefore unusual in respect to public relations. 



