No. 7. DEPARTMENT OF AGRICULTURE. 39 



HARSHBERGER, J. W., Ph. D., No. 737 Corinthian Avenue, Phila- 

 delphia, Pa.: 



1. ACCUMULATION OF SOIL NITROGEN. (45 minutes.) 

 The nitrogen removed from the soil b}' crops may be restored 



in three wavs: From the air; by nitrogenous fertilizers, and 

 by the action of bacteria, (the life history of which is given), 

 which live in the roots of leguminous plants. 



2. THE ROLE OF LEGUMINOUS PLANTS. (45 minutes.) 

 Agricultural crops may be divided into two categories: Those 



that accumulate nitrogen, and those that consume or use up 

 nitrogen. The second group includes the fruit producing 

 plants, the cereals and root crops. 



3. THE RUSTS OF AGRICULTURAL PLANTS AND HOW TO 



COMBAT THEM. (30 minutes.) 

 The life history of the rusts is explained in detail and the 

 method of combating them by securing rust-proof varieties 

 of cereals is also made a prominent feature of this lecture. 



4. THE SELECTION OF CORN AND BREEDING OF INDIAN 



CORN. (45 minutes.) 

 The selection of corn can be made along several lines for 

 fodder, for paper-pulp fibre, for the kernels and ears, etc., 

 used as cattle food or oil manufacture. 



5. POISONS AND STOCK KILLING PLANTS. (30 minutes.) 

 The plants injurious to stock may be divided into two classes, 



stock killers and poisonous plants. Stock killers are those 

 which produce death by mechanical injury, or by obstruct- 

 ing the alimentary canal. Poisonous plants are those which 

 kill animals by the presence of some noxious chemical sub- 

 stance in the plant. 

 G. THE CORN PLANT; A NATURE STUDY. (30 minutes.) 

 The origin of the Indian corn is considered and a discussion of 

 its past history is given. The botanic structure of this im- 

 portant grass is also explained at some length, especially 

 from the biologic and physiologic standpoint. 



HERR, JOEL A., Millhall, R. F. D., Clinton County, Pa.: . 



1. LARGE FRUIT CULTURE. (30 minutes.) 



Selection of varieties and quality of trees. Location and qual- 

 ity of soil. Preparation of the soil. Planting, cultivating, 

 pruning, picking, handling and marketing fruit. 



2. EDUCATION THROUGH ORGANIZATION. (20 minutes.) 

 The result obtained by mind coming into contact with mind. 



The value of discipline taught by organization. The value of 

 united effort in one direction. T]^e effort of study in our 

 pursuits. The cheer and happiness which association brings. 



3. CENTRALIZED SCHOOLS. (30 minutes.) 



Fewer and better qualified teachers. Better, easier and more 

 thorough instruction. Importance of gradation. More 

 regular attendance of pupils. Fev/er schoolhouses and less 

 expense. 



4. SELECTION AND CARE OF DAIRY COWS. (20 minutes.) 

 The purpose of selection. Points of a gaad dairy cow. Im 



portance of brepding from perfect cows Care as to health 

 and comfort. 



