Bernhard C. Hesse

The Patent Expert and the Chemical Manufacturer.

Bernhard C. Hesse, 1913 .

The Need of Revised Chemical Statistics.

Bernhard C. Hesse, B. C. Hesse, 1915 .

Lest We Forget! Who Killed Cock Robin? The U. S. Tariff-History of Coal-Tar Dyes.

Bernhard C. Hesse, B. C. Hesse, 1915 .

The Industry of the Coal-Tar Dyes. An Outline Sketch

Bernhard C. Hesse, B. C. Hesse, 1914 .