702 New Species of Field Mouse. 
depositaries for convenience of examination. Some return is 
made by the government but just what my informant neglected 
to state. 
I was much interested in Mr. Non Nemo’s account of the ad- 
justment of a conflict between local bureaus of research (somewhat 
like our state geological surveys but with a wider scope), and 
the official scientific commission of Utopia. This subject, however, 
we hope to fully elucidate in our contemplated memoir and will 
simply remark that the adjustment charged the local bureaus with 
the detailed examinations and collection of material, and imposed 
the duty of turning over a certain part of the facts and material to 
the central organization, which reduced the whole to systematic 
form, and ineluded in its report an epitome of the more detailed 
publications of the local bureaus. 
Several of the provisions described above seem to the writer 
adapted to the work of the Association for Advancement of Science 
and later to the International Congress of Sciences and, I trust, 
we may arrive at a satisfactory system without the long period of 
experiment and bitterness passed through by science in Utopia. 
DESCRIPTION OF A NEW SPECIES OF FIELD-MOUSE 
(ARVICOLA PALLIDUS) FROM DAKOTA. 
BY DR. C. HART MERRIAM. 
I G some small mammals collected during the past season at 
Fort Buford, in Northwestern Dakota, by Mr. vo 
Bailey, are four well-prepared skins with skulls of a very light- 
colored Arvicola, a careful study of which has led to some pute! 
tant and unexpected results. Concerning their habits, Mr. Bailey 
contributes the following: “ The pallid Arvicolas seem to be ges 
mon at Fort Buford. They show a decided preference for a 
north side of steep hills. I have not found them on the p i 
southeast, or southwest sides. The only reason I can suggest p 
this distribution is that the twilight (their favorite hour) is longe 
