OE ANIMALS WITH BLOOD. 263 



abstract reasoning, and not from facts previously ascertained. 

 On the other hand, prominence has been given to his 

 excellent method of inquiry, his interesting views on the 

 phenomena of light, colour, and heat, his records of comets, 

 earthquakes, volcanic eruptions, and relative changes in the 

 distribution of land and sea, his views on the constitution 

 of matter, his attempt to form a classification of animals, 

 his advice on the importance of dissection, the instances in 

 which he appears to have anticipated modern discoveries, 

 and his excellent work in anatomy, embryology, and zoology. 

 If the reader is satisfied that an impartial attempt has 

 been made to set out the real nature and value of Aristotle's 

 work in Natural Science, this book will have achieved its 

 object. 



