INTRODUCTION 5 



experience on his own farm must tell him what 

 crops to grow, how to fertilize his land, what 

 breeds and varieties to raise, when and how to 

 sow and to reap. The experience of one farmer 

 is invaluable to another, but each farm is 

 nevertheless a separate and local problem, which 

 the farmer must think out and work out for 

 himself. 



12. The farmer must be able not only to 

 raise his products, but also to sell them. He 

 must produce either what the trade demands, 

 or be able to sell products which are not known 

 in the general market. In other words, there 

 are two types of commercial effort in farming : 

 growing the staple products for the world's 

 markets (as wheat, beans, maize, meat), in 

 which case the market dictates the price ; grow- 

 ing special products for particular or personal sale 

 (as the products of superior excellence, and 

 luxuries), in which case the producer looks for 

 his customers and dictates the price. 



2b. Upon a knowledge of natural science 



13. The farmer, however, has more problems 

 to deal with than those connected with trade. 

 He must raise products : and such production 

 depends upon the exercise of much special 

 knowledge and skill. The most successful pro- 



