never have been produced. In the asphalt industry the chemist
has taught how to lay a road surface that will always be good,
and he has learned and taught how to construct a suitable road
surface for different conditions of service. In the cottonseed
oil industry, the chemist standardized methods of production,
reduced losses, increased yields, made new use of wastes and
by-products, and has added somewhere between $10 and $12 to the
value of each bale of cotton grown. In the cement industry, the
chemist has ascertained new ingredients, has utilized
theretofore waste products for this purpose, has reduced the
waste heaps of many industries and made them his starting
material; he has standardized methods of manufacture,
introduced methods of chemical control and has insured
constancy and permanency of quality and quantity of output. In
the sugar industry, the chemist has been active for so long a
time that "the memory of man runneth not to the contrary." The
sugar industry without the chemist is unthinkable. The Welsbach
mantle is distinctly a chemist's invention and its successful
and economical manufacture depends largely upon chemical
methods. It would be difficult to give a just estimate of the
economic effect of this device upon illumination, so great and
valuable is it. In the textile industry, he has substituted
uniform, rational, well-thought out and simple methods of
treatment of all the various textile fabrics and fibers where
mystery, empiricism, "rule-of-thumb" and their accompanying
uncertainties reigned. In the fertilizer industry, it was the
chemist who learned and who taught how to make our immense beds
of phosphate rock useful and serviceable to man in the
enrichment of the soil; he has taught how to make waste
products of other industries useful and available for