or commercial value. One might classify the "pure" linseed oil marketed as follows: praiseworthy, fair, and unsatisfactory.

A praiseworthy linseed oil is of a pale yellow color, brilliant, limpid, drying well, with a rich luster, and having a pleasant, nutty taste.

A fair linseed oil is a yellowish oil, with a brown hue; clear, drying fairly; not very pleasant to the taste, but somewhat bitter.

An unsatisfactory linseed oil is of a greenish or dark color, uncertain taste, cloudy, and drying poorly.

If all the liquid matter pressed out of flaxseed were painter's oil, and it were common to get a uniformly fair quality of it, substitutes for linseed oil could not be sold. Forty years ago, one and one-half gallons of oil were considered a fair yield from a bushel of flaxseed;  to-day,  with steam and