THE 



PENYCUIK EXPERIMENTS, 



BY 



J. C. BWART, M.D., F.R.S., 



UEaiUS PaOFESSOR OP NiTUBiL HISTOET, UNIVERSITY OF EDINBUEflH. 



WITH ILLUSTRATIONS. 



LONDON 



ADAM AND CHARLES BLACK 



1899 



All rujh.ts reserved. 



