A 



HISTORY 



OF THE 



BRITISH ZOOPHYTES. 



BY 



GEORGE JOHNSTON, M.D, LL.D, 



FELLOW OF THE ROYAL COLLEGE OF SURGEONS OF EDINBURGH. 



IN TWO VOLUMES— VOL. I. 



SECOND EDITION. 



LONDON: 



JOHN VAN VOORST, PATERNOSTER ROW. 



M.DOCC.XLVII. 



/ey? 



