MANUAI. OP NATURE STUDY. 109 



growth and purpose. Collect, as in the other 

 grades, a great variety of twigs, especially of hick- 

 ory, lilac, Balm of Gilead, Cottonwood and syca- 

 more. To avoid an over abundance of brush and 

 litter, request the pupils to cut the twigs only three 

 or four inches long and bind them into bundles of 

 a dozen twigs each before bringing them into the 

 school room. As to position, buds are either ter- 

 minal or lateral. The lateral buds are borne upon 

 the sides of the branch and are usually found in the 

 axil of the leaf. There are superposed buds and 

 adventitious buds on some plants, but it will be as 

 well to avoid the necessity of studying either in 

 this grade. 



The arrangement of buds is dependent upon the 

 arrangement of leaves. Compare terminal buds 

 with axillary buds, and account for the greater 

 growth from the terminal bud. 



Cut cross-sections of terminal buds and require 

 the children to draw cross-sections greatly enlarged, 

 so as to show the arrangement of the leaves and 

 scales. 



Cut cross-sections of lateral buds and draw. 

 Draw stems containing leaves with buds in axils, 

 and also terminal budg showing relative sizes. 

 Draw sycamore bud with the protecting leaf just 

 pulled off at one side, with cup in base of petiole 

 in full view. 



