64 AN ECONOMIC STUDY OF FIELD MICE. 



5. Clean moAving of grass lands and permanent nneadows, so that 

 no old grass is left over winter. 



6. Careful burning about orchards and gardens of weeds, trash, 

 and litter of all kinds that may serve the animals for winter shelter. 



7. When necessary, the burning of dead grass in meadows and pas- 

 tures. This, however, should not be delayed till late spring, when 

 ground birds are nesting. 



LITERATURE. 



Readers of this bulletin who desire further luiowledge of the classi- 

 fication and life histor}^ of field mice or of the historical accounts of 

 their ravages, may, in addition to articles found in general works on 

 mammals, consult the following: 



Bailey, Vernon. Revision of American Voles of the Genus Microtus. N. A. 

 Fauna No. 17. Washington. 1900. 



Bos, .J. RiTZEMA. Tierische Schadlinge und Niitzlinge, pp. 89-101. Berlin, 

 1891. 



CouES, Elliott. Monographs of North American Rodentia. Muridi^e. 1877. 



Crampe, Dr. Hugo von. Die gewerbsmiissig hergestellten Mittel zur Yertilgung 

 von Feldmiiusen und anderen schiidlichen Nagern. Landw. .Talirb., Band 

 12. pp. 450. 4.">8, .54r>-,5(;i. 



Douglas, Sylvester, Lord Glenbervie. An account of the unexampled devas- 

 tations committed by Field INIice in the Forest of Dean, in Gloucestershire, 

 and in New Forest, in Hampshire, during the years 181.3 and 1814. Zoolog- 

 ical Journal, vol. 1, pi). 433-444, Jan., 182.5. 



GowDY, J. K. U. S. Consular Reports, vol. 75. No. 282, pp. 417-419, 1904. 



Harting, J. E., and others. Report of the Departmental Committee on a Plague 

 of Fi.eld A'oles in Scotland, 1893. 



. Observations on the Common Field Vole of Thessaly. Zoologist, vol. 51, 



pp. 139-145. 1893. 



Heenan, Thomas. A Plague of Mice in Russia, 1893-5. U. S. Consular Re- 

 ports, vol. 50, pp. 539-540. 



Hiltner, Dr. Lorenz. Bericht iiber die von der Agrlkuiturbotanischen Anstalt 

 durchgefiihrten Versuche zur Bakjimpfung der Feldmiiuse. Prak. Blatter 

 fiir Ptianzenbau und Pflaiizenscliutz. new series, vol. 1, No. 9, pp. 97-102, 

 112-110. 1903. 



Hudson. W. H. The Naturalist in La Plata, chapter 3, A Wave of Life, 

 pp. 59-(i8. London. 1892. 



Kennicott, Robert. The Quadi'upeds of Illinois. Report of Commissioner of 

 Patents : Agriculture. 1856, pp. 84-90, 97-105. 



La Harpe. S. G. De. Le Campagnol des Champs. Jour. d'Agr. Pratique, 

 Mar. 3, 1904, pp. 278-290. 



Maxwell, Sir Herbert. Farm Vermin, Helpful and Harmful, chapter 1, Voles, 

 pp. 1-10. London, n. d. (1894.) 



MiLLAis. J. G. Mammals of Great Britain and Ireland, Vol. II, pp. 233-299. 

 1905. 



Miller, Gekrit S.. Jr. Genera and Subspecies of Voles and Lemmings. N. A. 

 Fauna, No. 12, Washington, 1896. 



NiSBET, John. Farm Vermin, Helpful and Harmful, chapters 6 and 7, Enemies 

 of Woodland and Nurseries, pp. 51-68. (1894.) 



The Vole Plague in France. The Field (London), April 23, 1904, p. 695. 



The Vole Controversy. Land and Water. June 10. 1893, pp. 581-582. 



O 



