INTRODUCTION I 



ARISTOTELIAN PERIOD 5 



RAY AND WILLUGHBY 21 



RAY AND WILLUGHBY continued. 37 



LINNAEUS AND THE LINNEAN CLASSIFICATION 46 



THE GREAT MUSEUMS OF BRITAIN 



Sir Hans Sloane 64 



John Hunter 69 



BRITISH ZOOLOGISTS 9O 



BRITISH ZOOLOGISTS continued. 107 



The Rev. Gilbert White no 



Alexander Wilson 121 



CUVIER 136 



RETROGRESSION Swauison and the Circular Classification 168 



BRITISH ZOOLOGISTS continued. 183 



EDWARD FORBES... 192 



THE DAWN OF THE EVOLUTIONARY PERIOD Erasmus Darwin....223 



THE TRANSMUTATION OF SPECIES Lamarck 236. 



THE DOCTRINE OF PROGRESSIVE DEVELOPMENT The 'Vestiges 



of Creation' 264 



THE THEORY OF NATURAL SELECTION Charles Darwin 275 



THE THEORY OF NATURAL SELECTION continued. 293 



INDEX 37 



