Drying and preheating coals before coking. Part 1, Individual coals / H.W. Jackman, R.J. Helfinstine.H. W. b. Jackman1968
Use of Illinois Coal Fines in Production of Metallurgical Coke H.W. Jackman R.J. Helfinstine.H. W. b. Jackman1961
Pelletizing Illinois fluorspar / H.W. Jackman, R.J. Helfinstine, and Josephus Thomas, Jr.H. W. Jackman1963
Some Effects of Humidity on the Properties of Fabrics, with Special Reference to the Control of Humidity During Strength Tests; by R.G. Parker... and D.N. Jackman.R. G. Parker1926