sizeable d ung heaps. Evident ly they don't ma ke 
runways like Ilicrotus . but they have similar dumps, 
moot frequently in low -moist-spots^ All the - a cti v e 
colonies I located were in moist mossy areas. I 
found one well—built surface nest which 1 attribute 
-to lemmings. - It was in a mos sy- area of - perhaps-six 
acres in extent._ It was ma de of drie d g r a s se s and 
mosses, was cylindrical in form, six inches in 
diameter,— and tw e l ve—inc hc 3 deep, —and was fitted 
snugly into the live m o sses and was a lmost flu sh_ 
with them at the surface.-I later realized that 
all of this was old-winter sijfen, -dating from one 
or two win ters pastI 
/"fife- I^**-**. cA*A> 
ceJte- ^zZ> 
-SIZMJ-- 
. a js.urftu^ 
:<y 
