THE PRESERVING OF PLANTS 



117 



deavor to show all the forms or variations of the dandelion, pigweed, 

 apple tree, timothy, or red clover; another may collect all the plants on 

 his father's farm, or all the weeds in a given field; another may present 

 an herbarium showing all the forest trees or all the kinds of fruit trees of 

 the neighborhood; and so on. The collector should be asked to display 

 his herbarium to the school, explaining the problem in hand; and the 

 teacher and others may then criticise the making of the specimens. The 

 teacher should discourage the collection of plants simply because they 

 are rare; and an effort should be made to preserve in their natural 

 locations the interesting and showy wild flowers, rather than to 

 destroy them by over- zealous collecting. 



FIG. 116. 

 The botanist's resort on a rainy day, 



