[by] D. P. Howson and R. B. Smith. by E. A. Ollard and E. B. Smith. by E.A. Ollard and E.B. Smith. D. W. Jordan and P. Smith. P. A. F. White and S. E. Smith. D.W. Jordan and P. Smith. G. Herdan and M. L. Smith. J.D. Harris and I. C. Smith. by D. O. Hall and K. K. Rao. by D. R. Beaman and J. A. Isasi.