by J. D. Livingston and H. W. Schadler. by J. E. Gowan and T. S. Wheeler. by M. W. Porter and R. C. Spiller. by F.R. Winton and L.E. Bayliss. by W. H. Tatton and E. W. Drew. by G. Stephenson and C. W. Kilmister. by L. J. Norton and L. L. Scranton ..