324 PHILOSOPHICAL NOTES ON 



" Moreover, as a number of isolated facts soou become uuinterestiug, the 

 habit of comparison leads to generalization. On the other hand, as the 

 traveller stays but a short time in each place, his descriptions must generally 

 consist of mere sketches, instead of detailed observations. Hence arises, as 

 I have found to my cost, a constant tendency to fill up the Avide gaps of 

 knowledge by inaccurate and superficial hypotheses."— Chas. Darwin, 

 Nat.'s Voy. rolxd the World (new edit., p. 537). 



