occasional dwarfed spruce and Crisped in various directions by sandy or gravelly ridges The remains of former shorelines, with many jords and marshy places between the ridges. On the gravelly ridges we found many burrows of Dicrostonyx and Pother might had trapped and dug out about 20. The burrows usually started beneath a piece of driftwood and usually proceeded nearly horizontally for 18 inches or two feet to the nest which was made of grass & moss and occupied a small chamber about 4 or 5 inches in diameter. From this there was emally a passage way leading off about 18 inches farther evidently intended as a place of refuge. This did not end in a chamber but merely terminated, and at its extremity we usually found the animal- when the burrow was tinanted. Sometimes this passage way if. refuge Transferred 73 from the main passage before the nest was reached In dry into a good many burrows which contained nothing, and as there was nothing in the appearance of the entrance to indicate this. one is likely to set many traps at unoccupied burrows, so digging seems to be the most satisfactory way to obtain specimens. But one adult animal appears to occupy a burrow. We captured several in burrows which merely ran beneath a piece of half-buried skywood, in which case, cavities in the log formed a part of the burrow. One litter of 4 young was found in a nest.g Nearby an old one was seen to take refuge in a shallow burrow at the roots of a willow. It proved to be an adult & and was doubtless the parent of the young once taken. Many burrows and runway of Microtis we found at the edge of the pond and a line of traps set for them