Lamia

'Do not all charms fly At the mere touch of cold philosophy?/ 

There was an awful rainbow once in heaven:/

 We know her woof, her texture; she is given/ 

In the dull catalogue of common things./ 

Philosophy will clip an Angel's wings,/ 

Conquer all mysteries by rule and line,/

 Empty the haunted air, and gnomed mine -/ 

Unweave a rainbow, as it erewhile made/ 

The tender-person'd Lamia melt into a shade.'

-J.K