24 LESSONS IN AGRICULTURE 



accurate scale. Place in this map the creeks, springs, 

 Iniildings, etc. 



2. Collect bottles of the different kinds of soil found 

 on the tract, and bring to school. 



3. Make a list of all the useful plants growing on 

 the plot. 



4. Make a list of all the weeds or useless plants 

 known on the plot. 



5. Make a list of all the domestic and wild animals 

 seen. 



6. Make a list of all the birds and insects observed 

 from time to time. 



This work may continue through many weeks, and 

 the pupils should keep a neat and accurate record in 

 their permanent note-books of the observations on their 

 tracts of land. 



LESSON IV 



INSECTS THAT INJURE THE CROPS 



"The farmer may prepare the soil ever so well, he 

 may fertilize with the greatest of care, he may culti- 

 vate thoroughly, the weather conditions may be favor- 

 able, and yet he may lose all or a portion of his crop 

 through the attacks of insects and the ravages of plant 

 diseases." (Hatch.) 



Extent of injury. Insects destroy our crops to the 

 value of millions of dollars. The farmer has learned 

 to, fight some of these pests successfully, and yet too 

 little attention is paid by the average farmer to methods 



