17f> NATURE-STUDY REVIEW [7 :7— Oct., 1011 



cardboard in the position that it is desired for permanency, and 

 press down all the various parts firmly and carefully. 



WEED SEEDS. 

 (A Practicum.) 

 Make a collection of the seeds of the various weeds in the 

 herbarium. These seeds should be placed in vials, which should 

 be corked, and properly labeled. 



LESSON IN WEEDS 



C. A. STEBBINS, Instructor in Agricultural Education, University 



of California 



[Reprinted from Town and Country Journal.] 

 LESSON XIII. WEEDS. 



Unit of Instruction — -The Wild Morning Glory. 



General Topic Aims — To add interest to the study of plant 

 life through the wild morning-glory as a typical weed; to teach 

 the relation of weeds to other plants and to man ; to add, from 

 this study, more emphasis on the mutual dependence and help- 

 fulness of nature, and to give further foundation for under- 

 standing its unity. 



Specific Lesson Aims — To teach the children to recognize 

 the wild morning-glory ; to understand its economic status ; to 

 devise and apply a method of control ; to teach its characteristic 

 habits of life. 



Children's Aim — To get rid of the weed which is crowding 

 the other plants and over-running the gardens. 



The following outline will be suggestive to the teacher. The 

 teacher must not forget that the children are interested primarily 

 in getting rid of the w T eeds. 



After this typical weed has been studied, field trips should 

 be made to make comparative study of seed dispersal, etc. 



Weeds 



1. Field Study. 



A. Recognition. 



1. General form of plant. 



2. Location of leaves and flowers. 



3. Characteristic of seeds. 



4. Habits in growth. 



B. Seed dispersal. 



C. Character of locality of occurrence. 

 1. Soil, relief, animals. 



D. Collections of seeds and leaves. 



