The Trunk 87 



2. How old was the tree from which your log was taken ? Had 

 it lived through any extremes of heat or cold ? How do you know 

 this ? 



3. How many different kinds of layers can you distinguish on 

 your log, counting inwards from the outside bark ? 



4. Pass a glass tube into the stalk of the narcissus. Fasten it 

 firmly with wool. Put the stalk, flower end downwards, into a glass 

 of water. Blow gently into the tube. What happens ? 



5. Examine carefully the different twigs. Write down the name 

 of each twig. Under the name write whether lenticels are present 

 or not, and if so whether they are large or small. 



6. Draw your mounted shaving. Notice whether the space 

 between the different layers is equal, or nearly so. Indicate in your 

 sketch by an arrow the line in which you would use a plane. 



7. Write down uses to which at least three different parts of the 

 oak tree are put. 



HOME WORK. 



Make a water colour sketch not less than 9 in. high and 2 in. 

 wide of the trunk of a tree, showing where the trunk meets the 

 ground and where the branches begin. Write the name of the tree 

 underneath. 



CHAPTER XI 



CATKINS 



Season. About second week in March. (This lesson 

 must be interchanged with one of those preceding or 

 following it if the year is a forward or late one.) 



Materials required for each pupil. 



Lens. Dissecting needles. One twig showing cat- 

 kins of each of the following trees (or two if male and 



