XV. THE ECONOMIC IMPORTANCE OF ANIMALS 



rroblems. — I, To deterinine the uses of animals. 

 {a) Indirectly as food. 



(b) Directly as food. 



(c) As doinesticated, animals, 

 id) For clothing. 



(e) Other direct economic uses. 



(/) Destj^uction of harmful plants and animals. 



II* To determine the harm done hy animals. 

 ia) Animals destructive to those used for food. 



(b) Animals harmful to crops and gardens. 



(c) Animals harmful to fruit and forest trees. 



(d) Animals destructive to stored food or clothing. 



(e) Animals indirectly or directly responsible for disease. 



Laboratory Suggestions 



Inasmuch as this work is planned for the winter months the laboratory 

 side must be largely museum and reference work. It is to be expected 

 that the teacher will wish to refer to much of this work at the time work is 

 done on a given group. But it is pedagogically desirable that the work as 

 planned should be varied. Interest is thus held. Outlines prepared by 

 the teacher to be filled in by the student are desirable because they lead 

 the pupil to individual selection of what seems to him as important mate- 

 rial. Opportunity should be given for laboratory exercises based on 

 original sources. The pupils should be made to use reports of the U. S. 

 Department of Agriculture, the Biological Survey, various States Reports, 

 and others. 



Special home laboratory reports may be well made at this time, for 

 example : determination at a local fish market^ of the fish that are cheap 

 and fresh at a given time. Have the students give reasons for this. 

 Study conditions in the meat market in a similar manner. Other local 

 food conditions may also be studied first hand. 



197 



