38 



egg to cocoon is accomplished within the limits of the spring 

 term of our schools: third, it is common everywhere; fourth, it 

 is an important insect from an economic point of view, and the 

 children may be taught how to keep it out of the orchards, thus 

 making the lesson of practical use. 



In this lesson the teacher is encouraged to use her own 

 methods and originate new ones to make the work interesting. 

 The leaflet is meant for the exclusive use of the teacher and 

 the text should not be show-n to the pupils. The pictures on 

 the last page* are to be shown to the pupils at the teacher's 

 discretion. When answers are herein given to the questions 

 asked, they are meant to aid the teacher in drawing out the 

 correct replies from the children. 



Materials Needed. 



1. A pocket lens or a tripod lens is desir- 

 able, but not a necessity. These may be 

 bought from or ordered through any jeweler 

 or bookseller. They cost from twenty-five 

 cents to one dollar apiece. It is well worth 

 while to any teacher to possess one of these 

 magnifiers as a means of interesting her pupils 

 in many ways. 



2. A bottle, a broad bottomed one being 

 preferable, so that it will not tip over easily. 

 This bottle is to be filled with water in which 

 a small branch of the apple-tree may be placed 



to keep it fresh. A common ink 

 bottle will do to begin with. Fig. 24. 

 3. A wooden or pasteboard box, 

 twelve or fourteen inches square, — a 

 soap box or hat box will do. In place 

 of a cover, nail or paste mosquito net- 

 ting or cheese cloth over the top; re- 

 move the bottom so the box may be placed over the bottle and 



24. T/ie bottle with the 

 twigs bearing the egg 

 masses. The tent is being 

 woven below. 



* Teachers who desire to take up this teaching should write us for enough extra 

 sheets of page 47 to supply the scholars. 



