182 
JOURNAL OF MAMMALOGY 
[von Burg, G.] Von den schweizerischen Eichhornchen. Der Weidmann 
(Biilach-Zurich), Jahrg. 1920, no. 48, p. 387. December 2, 1920. (New 
name; Sciurus vulgaris subalpinus.) 
Schweizerische Wiesel und Hermeline. Der Weidmann, Jahrg. 1920, 
no. 48, pp. 387-388. December 2, 1920. (New names; Putorius ermineus 
alpestris and P. e. giganteus.) 
Das boralpen Eichhornchen. Der Weidmann, Jahrg. 1920, no. 51, p. 
408. December 23, 1920. (Further remarks on his Sciurus vulgaris subalpinus.) 
Hermeline aus dem oberen Engadin. Der Weidmann, Jahrg. 1920, no. 
51, p. 409. December 23, 1920. (The name Putorius boccamela alpinus is 
proposed for the ermine of the upper Engadin.) 
^Miinstertaler Siebenschlafer. Der Weidmann, Jahrg. 1920, no. 52, p. 
419. December 30, 1920. {Glis glis subalpinus, provisional name for a speci- 
men of Glis iialicus.) 
Hausratten. Der Weidmann, Jahrg. 1921, no. 1, p. 7. January 6, 1921. 
(New name; Mus rattus jurassicus.) 
^Miinstertaler Haselmause. Der AVeidmann, Jahrg. 1921, no. 3, p. 6. 
January 20, 1921. (New; Muscardinus avellanarius mustairensis.) 
• Eine neue Spitzmaus? Der Weidmann, Jahrg. 1921, no. 3, p. 6. Jan- 
uary 20, 1921. (New; Crocidura suffiavidentata.) 
— Hausmause aus den oberen Tessintalern. Der Weidmann, Jahrg. 1921, 
no. 6, p. 5. February 10, 1921. (New; Mus musculus airolensis.) 
Ward, Henry B. The conservation of game and fur-bearing animals. Science, 
n. s., vol. 53, p. 288. March 25, 1921. 
Wright, Sewall, and Paul A. Lewis. Factors in the resistance of guinea pigs 
to tuberculosis, with especial regard to inbreeding and heredity. Amer. 
Nat., vol. 55, pp. 20-50. February, 1921. 
CORRESPONDENCE 
SEPARATE COPIES 
To the Editor, Journal of Mammalogy; 
May I appeal through you to my many friends among American mammalogists 
not to refrain from sending me separate copies of their papers in the Journal 
merely because they know I am a member of the Society, and therefore get the 
Journal. 
Our great collection of separates here has been entirely built up out of the 
copies sent me, and these being arranged under author’s names, and bound accord- 
ingly, the omission of contributions in the form of separates adds considerable 
probability to the chance of the papers being missed when work is done on the 
groups referred to, and certainly makes use far less convenient. 
One has hitherto looked upon American naturalists as being the most liberal 
and the most certain in sending copies of their papers, but now alas the matter 
