NOTES AND REFERENCES. 



PAGE 



13. THE reader who is curious as to the views of the ancients, regarding 



the objects of science, will find clues to them in the second book of 

 ARISTOTLE'S Physics, and in the first three books of the Metaphy- 

 sics. See also the Timaeus of PLATO, and BITTER'S History of 

 Ancient Philosophy, where a sketch of the Philosophy of LEUCIPPUS 

 and DEMOCRITUS will be found. 



14. BACON'S Novum Organum, book ii. aph. 6 and 6. 



16 HUME'S Enquiry concerning Human Understanding, S. 7, London, 

 1768. 



BROWN'S Enquiry into the Relations of Cause and Effect, London, 

 1835. 



The illustration I have used of floodgate has been objected to, as 

 being one to which the term cause would scarcely be applied, but 

 after some consideration I have retained it: if cause be viewed 

 only as sequence, it must be limited to sequence under given condi- 

 tions or circumstances, and here, given the conditions, the sequence 

 is invariable. I see no difference quoad the argument, between 

 this illustration and that of BROWN of a lighted match and gun- 

 powder (4th edit. p. 27), to which my reasoning would equally well 

 apply. 



HERSCHEL'S Discourse on the Study of Natural Philosophy, pp. 88 

 and 149. 



17. Quarterly Review, vol. Ixviii. p. 212. 



WHEWELL, On the Question ' Are Cause and Effect Successive or 

 Simultaneous? (Cambridge Philosophical Transactions, vol. vii p. 

 319.) 



18. HERSCHEL'S Discourse, p. 93. 



AMPERE, Theorie des Phenomenes Electro-dynamiques, Memoirs in 



