COLLECTION OF INSECTS FOR STUDY. 17 



OTHER ILLUSTRATIVE MATERIALS. 



COMMERCIAL FERTILIZERS. 



It will be a good idea for the school to secure samples of commercial 

 fertilizers sold on the local market, keeping these in small bottles, 

 labeled with the name under which the product is sold, and, if possible, 

 its composition. 



MANUFACTURED PRODUCTS, 



By way of iEustrating the commercial importance of farm products 

 interesting collections can be prepared to show the various ways in 

 which these products are utilized in trade. Thus, a series of articles 

 might be prepared to show the products which may be manufactured 

 from corn, such as breakfast foods, corn sirup, cornstarch, corn oil 

 corn rubber, commercial foods for live stock, paper made from corn- 

 stalks, ceQulose made from the pith of the stalks, and numerous other 

 articles. In like manner, the uses of other farm products, such as 

 cotton, oats, wheat, and others may be illustrated, 



LANTERN SLIDES AND PICTURES. 



Nearly every well-equipped school nowadays has facilities for asing 

 lantern slides to illustrate special lessons on various topics. No sub- 

 ject presents greater possibilities for the use of slides than agriculture. 

 Slides which will be of interest to agricultural students can be pur- 

 chased from commercial firms or from other sources, or, if the school 

 can not afford to own a set of slides, there are always opportunities 

 to borrow or rent special sets for temporary use.^ 



Every school in which agriculture is taught ought to own a collec- 

 tion of pictures to illustrate the work. Photographic prints are, of 

 course, the most desirable; but when these can not be obtained, half- 

 tone cuts, or even line drawings taken from the pages of agricultural 

 papers and from similar sources, can be used to advantage. In many 

 schools either the teacher or some of the pupils will have cameras, and 

 thus original photographs may be obtained for the collection. It is 

 suggested that these pictures be mounted on good quality gray card- 

 board mounts of uniform size and filed upright, under convenient 

 classifications indicated by guide cards, in a drawer or letter file. It 

 is not advisable to paste pictures of this sort into a bound scrapbook, 

 since in this form they can not be so readily used by the class. 



Some of the kinds of pictures which should be collected are the 

 following: Types of the various breeds of farm animals; views of 

 good farm buildings and well-arranged grounds; good types of farm 

 products, such as well-formed ears of corn; views illustrating the 



1 Lantern slides on agriculture and forestry can be purchased or borrowed to a limited extent for educa- 

 tional purposes from the United States Department of Agriculture, Washington, D. C. Applicants should 

 write to the department for furthern information. 



