The highway to Pagosa Springs followed the San Juan River up the pass to the top of the Rocky Mountains while side streams, arush with melting snow, ice cold to the touch, cascaded down from the roof of the sky, thousands of feet above.
The warm wind assisted the sun in melting the snow and most of it was already gone, leaving a trail of sloppy mud to the barn.
It had stirred before, but not with the warm tingle melting its icy cage.
In an experiment on 3500 grams of paraffin produced from shale (melting point 44'5° C.) they obtained nearly 4 litres of liquid hydrocarbons, which they subjected to fractional distillation, and on examining the fraction distilling below loo° C., they found it to consist mainly of olefines.
Paraffin wax is tested for melting-point (or setting-point), and the semi-refined product is further examined to ascertain the percentage of oil, water and dirt present.