Improvement in ski, duraluminum sampler, and weighing apparatus

Skis, waxed to the condition of the snow and equipped with some form of rigid bindings, are used almost entirely by snow surveyors. Experience with the new duraluminum sampler tubes points to the necessity of shellacking them to prevent the snow water from adhering to the bare metal. The tubes work well in warm weather, but on very cold days the core froze to the inside of the tube. The duraluminum sampler tubes will be tried again after being shellacked. Experiments to determine the effect of different temperatures and atmospheric conditions are planned. The Mount Rose Type balance remains the most satisfactory where large variations in depth of snow are encountered.