EARLY RECORDS AND MIGRATIONS 15 



as pets, as at present 6 there is nowhere to be found an established 

 colony of Albinos living in open competition with the common 

 Xorways or with forms of Mus rattus, but all of the colonies are 

 maintained practically under conditions of domestication. 



In the northern United States, except along the water front 

 of the larger ports, where the house rat arrives from time to 

 time on vessels, we have therefore to deal almost exclusively 

 with the Norway rat. The Norway has been in this region prob- 

 ably not more than a hundred and fifty years. Though living 

 wild, it is more or less dependent on the food conditions found 

 where man is established. The familiar Albino — Mus norvegi- 

 cus albinus — is a sport derived from the wild Norway, and is 

 the form on which most of the investigations here presented 

 have been made. 



EARLY RECORDS AND MIGRATIONS: REFERENCES 



Albertus Magnus, b. 1206— d. 1280. Barrett-Hamilton, 1892. Bate, '12 

 Baumgart, '04. Blasius, 1857. Borcherding, 1889. Campbell. 1892. Clarke. 



1891. Cornalia, 1858-1871. Cornish, 1890. Donaldson '12 '12 a. '12 b. Donn- 

 dorff, 1792. Edwards, 1871, 1872. Fischer, 1869. Geisenheymer, 1892. Geof- 

 froy, 1812. Gesner, 1551. Giraldus Cambrensis, b. 1146?— d. 1220. Godman, 

 1826-1828. Gourlay, '07. Hamy, '06. Harlan. 1825. Hatai, '07, '07 c, '12. 

 Hehn, '11. Hossack, '07, '07 b. l'Isle, 1865. Keller, '09. Keller-Zschokke, 



1892. Lantz, '09. Lapicque, '11. Lefroy, 1882. Liebe, 1891. Lindner, 1891. 

 Linnaeus, 1746, 1758. Lloyd, '10. '12. Lons, '08. Major (see Baumgart, '04). 

 Meinardus, 1882. Messer, 1889. Middendorff, 1875. Millais, '04. Mojsisovics, 

 '97. Moss, 1836. Murray, 1866. Ovalle, 1646. Pallas, 1831. Pennant, 1781. 

 Prodromus, Theodorus (see Keller, '09). Przibram, '12. Reichert and Brown, 

 '09. Rodwell, 1858. Schaff, 1891. Vega, 1688. Ward, '06. Webster, 1892. 

 Woldfich, 1880-1884. 



Ratlenkonig. 



Ahrend, '03. Demaison, '06. Dollfus, '06. Koepert, '04. 



6 Rodwell, 1858, page 10, mentions what may have been a colony of Albinos 

 living wild at the Ainsworth Colliery near Bury, England. 



