This annual report of the operations of the Federal Snow and Avalanche Research Station at the Weissfluhjoch deals with:— Weather conditions, snow, avalanches and the damage caused by them throughout the Swiss Alps. There are notes on the sliding of snow, on the problem of snow pressure, and on sundry other scientific and practical work done by the Station. The value of the many tasks completed there under the competent leadership of its Director, Dr. M. de Quervain, is very great.