186 YELLOW-HAIRED PORCUPINE. 
heaved to so great an altitude. The main trail 
from this glen leads over the Kootanie pass to 
the Buffalo plains of the Saskatchawan ; our trail 
to the astronomical station, near the 49th parallel, 
6,480 feet above the sea-level; above this nearly 
6,000 feet more altitude could be gained by 
climbing. 
Whilst at our camp in the glen I obtained two 
rather rare animals, one— 
Tue YELLOW-HAIRED Porcurine ( Lrethizon epi- 
wanthus, Brandt).—A quaint-looking beast, that 
may be seen in the Porcupine Case in the British 
Museum; the quills are entirely hidden by a long 
silky coat of yellowish hair. Of its habits I know 
very little; living entirely in the dense forests, 
watching it is an impossibility. It feeds on the 
bark and succulent shoots of the shrubs and trees 
composing the underbrush: for nipping these 
off the jaws they are armed with four powerful 
incisor-teeth, sharp as chisels. 
Say’s Srrieep SqurrreL (Spermophilus la- 
teralis) is one of the most beautiful of the 
Spermophiles (‘ seed lovers.’) Its size is about 
that of the ordinary red squirrel. Instead of 
the quiet sombre garb usually worn by its 
brethren, this little squirrel is clad in the 
gayest costume imaginable; and as it nimbly 
