56 PRACTICAL ZOOLOGY 



of tincture of larkspur should be made. Savages effectually 

 destroy lice by covering their bodies with grease, oil, or paint. 



REFERENCES 



Our Insect Friends and Enemies, by J. B. Smith. — J. B. Lippincott Co., 



Philadelphia. 

 Injurious Insects, by W. C. O'Kane. — The Macmillan Co., X. Y. City- 

 Insects Affecting Domestic Animals, by Herbert Osborn. — Bulletin 5, 



Bureau of Entomology, U. S. Department of Agriculture. 



