By Smith, B.Babington, Farrell, B.A.
By Kahn, Jack, Nursten, Jean P., Carroll, Howard C.M.
By Katritzky, Alan R.
By Rhodes, A Fletcher, D L.
By Hussey, D.E.
By Ben Butterworth
By Lockhart, J.A.R., Wiseman, A.J.L.
By James H. Johnson
By Coats, Warren L., Khatkhate, Deena R.
By Eckholm, E. P.
By Clarke, M.R.B.
By Torchinsky, Y.M.
By W. R. Hindmarsh
By Williams, J.
By OPEN UNIVE
By File, S.E.
By Dixon, Sydney Lawrence
By A. A. M. Sayigh
By Sinnott, Ray
By Harvard, Joseph, Rose, Felix
By Unidentified Author
By Hockey, S.W., Mills, J.R.
By Messel, H; Butler S.T
By Brian H. Chirgwin, Charles Plumpton
By P. Hammond
By Clarke, John Innes
By W. C. Newell