MIMICRY. 363 



what are considered as " demonstrated," * and others classed as 

 " suggested or probable," illustrations of the theory of mimicry ; 

 and it will be noticed that those in the second category are much 

 more numerous than those included in the first ; inference 

 necessarily having so often to be relied upon in the absence of 

 observed facts. 



(To be continued.) 



* Of course by this term is meant what has been or can be demonstrated, 

 and hence a careful observation made by a competent traveller must be 

 accepted as decisive, for we can neither all visit the scene of the occurrence 

 nor, if we could, is it certain we might meet with the instance. A remark by 

 Lecky is apposite : — " If anyone in a company of ordinarily educated persons 

 were to deny the motion of the earth, or the circulation of the blood, his 

 statement would be received with derision, though it is probable that some 

 of his audience would be unable to demonstrate the first truth, and that very 

 few of them could give sufficient reasons for the second" (' Rationalism in 

 Europe,' vol. i. p. 9). 



