MANUAL OF NATURE STUDY. 
39 
3. Lessons on Trees. — a. Distinguished by leaf, 
shape, bark, habit, b . Observe development of 
leaf-bnds. c. Study arrangement of leaves. 
The autumn months any time before frost will be 
the proper time to introduce the study of trees. A 
trip to the woods by the whole school is the best 
way to secure the right kind of interest. This may 
be done immediately after a study of the leaves in 
the school room, as given in the first part of this 
outline. The leaves of the sycamore, linden, catal- 
pa, cherry, beech, hickory, oak, elm, horse chestnut, 
walnut and locust have already been studied as to 
form, variation, color, etc. So it will be an easy 
matter now to select the trees that bear them. Be¬ 
fore starting on this visit to the woods it will be 
well for the teacher to supply each of the children 
with a number of cards on each of which may be 
written near the upper margin the name of a tree 
whose leaf has already been studied by the pupil. 
On entering the woods the children holding these 
cards will separately search for the tree or trees 
named on these cards. On finding the object 
of their search they will write on their respective 
cards a brief description of bark, and* shape of 
tree, write signature, pin the card upon the tree 
described and return to the teacher. These cards 
thus pinned to the tree will stand as evidence of 
