"The chapter, Marine steam turbines was written by E. N. Janson; Internal-combustion engines, by A. H. Ziegler; Producer gas plants, by Godfrey M. S. ...
"The chapter, Marine steam turbines was written by E. N. Janson; Internal-combustion engines, by A. H. Ziegler; Producer gas plants, by Godfrey M. S. Tait, and Oil fuel, by E. N. Percy."