254 



A YEAR IN AGRICULTURE 



each list with the teacher's correct names. This exercise may 

 be repeated until the pupils know all the trees in the vicinity. 

 2. Reports on individual trees. Assign to each pupil a 

 single species of tree and require the following table filled 

 out, from observational study: 



3. Determining age of trees. Cut cross sections of 

 branches as large as can be conveniently obtained, and give 

 each pupil a section. Count the rings of growth in the cross 

 sections and note the age of the branches. Make drawings 

 of the sections showing bark, rings of growth, and pith rays. 



4. An observational study of forest conditions. Go with 

 the class in agriculture to a forest. Let the pupils scatter 

 out through the forest' until no two are within fifty steps of 

 each other. With paper and pencil let each pupil make 

 note of the forest where he is standing, as follows: 



1. Condition of crown, whether open or closed. 



2. Tree-boles, whether clean, straight, etc. 



3. Forest floor, whether grassy or rich in leaf mould. 



4. Kind of trees. 



