Suggestions for Laboratory and Field Work to Precede 

 Chapter Ten 



1. Make accurate drawings of small portions of herbaceous and 

 woody stems, noting the various surface features. Goldenrod, 

 sunflower, aster, gourd, buckeye, box elder, raspberry, elm, ailan- 

 thus, and hawthorn are particularly suitable. Label the terminal 

 buds, lateral buds, leaf scars, bundle scars, lenticels, and bud scars. 



2. Study branches of spruce and apple, to show growth of dif- 

 ferent years. 



3. Place some twigs of soft maple, ailanthus, willow, and cotton- 

 wood in water. Make a series of drawings to show stages in the 

 opening of the buds. 



4. Make sketches of several trees to show the deliquescent and 

 excurrent types of branching. 



lOI 



