18 January, Thursday, (171) S, N28; S, N28; S, N28; S, N28; S, N28. a.m. -18.8 -18; -19.5; -21; -18.5; -16 min -71, max -15 Regular blizzard has raged all day, but the Eskimos said about 9 p.m. that the stars were beginning to come out. Put on my kooletah at noon and started out for my usual walk but I found the storm so bad and the air so thick with driving snow that I did not go off the bank. I walked around the house and came in- dors again to continue reading "The People of the Polar North". I finished the interesting book early this evening and wrote a letter to its author. We had great sport this evening with a trick bottle based on the old "bottle imp" of experimental physics. Mac rigged up the contrivance last night with a bent glass tube entering a cork but not penetrating it, a short piece of tube being let into the underside of the cork so that it looks as if the long tube entered the bottle. One blows into the tube to make the imp go down, but it will not go because the pressure is not trans- mitted. The bottle should have flat sides. The imp will descend if one squeezes the bottle. Accommo- ding Quak and Mayak got quite ex- cited over their efforts to drive the imp down.