414 APPENDIX 



3. Have exercises in grading and packing fruit. 



4. Study methods of storing and of marketing as practiced 

 in the region. 



CHAPTER XX. INSECTS. 



1. Observe and report damage- from insect enemies. 



2. Report examples of birds feeding their young on insect 

 larvae. 



3. Report damage to birds' nests by cats, dogs, and other 

 enemies of our bird friends. 



CHAPTER XXI. DISEASES OF PLANTS. 



1. Make up a number of the spray mixtures and use them 

 on nearby trees as needed. 



2. By means of a rapid survey calculate the loss from 

 each of the worst plant diseases of the region. 



CHAPTER XXII. IMPROVEMENT OF ANIMALS. 



1. Report observations of the bad effects of crossing. 



2. Report examples of the money values of pure bred 

 stock as compared to scrubs. 



3. Have pupils bring hi examples of variation in poultry, 

 pigs, etc. 



CHAPTER XXIII. HORSES. 



1. Students should visit the stables of a veterinarian in 

 a group. He will be glad to show cases of sickness or injury 

 of horses in his care. He can show you specimens and give 

 lessons on teeth, horses' feet, etc. 



2. Get a good horseman in the district to demonstrate 

 with light and heavy horses the good and poor points of 

 each individual. 



CHAPTER XXIV CATTLE. 



1. Students should be taken to a farm where beef cattle 

 are found. Practice picking the best and the poorest for the 

 type, both as feeding for beef or as breeding animals. 



