The Life of the Caterpillar 



fetidity and the Silpha and Necrophorus of 

 the stench of the Mole. 



The second, which is far superior in its 

 range through space, escapes us altogether, 

 because we lack the necessary sensory equip- 

 ment. The Great Peacock and the Banded 

 Monk know it at the time of the nuptial re- 

 joicings. And many others must share it in 

 various degrees, according to the exigencies of 

 their mode of life. 



Like light, odour has its X-rays. Should 

 science one day, instructed by the insect, en- 

 dow us with a radiograph of smells, this arti- 

 ficial nose will open out to us a world of 

 marvels. 



330 



