4 books
Petrographical Tables; An Aid to the Microscopical Determination of Rock-Froming Minerals
The Petrology of the Sedimentary Rocks, a Description of the Sediments and Their Metamorphic Derivatives
Text-Book of Petrology, Containing a Summary of the Modern Theories of Petrogenesis, a Description of the Rock-Forming Minerals, and a Synopsis of the Chief Types of the Igneous Rocks and Their Distribution as Illustrated by the British Isles
The Iron and Steel Industry of the United Kingdom Under War Conditions. a Record of the Work of the Iron and Steel Production Department of the Ministry of Munitions