32 LETTERS ON ENTOMOLOGY. 
Dipt in the richest tincture of the skies, 
Where light disports in ever-mingling dyes ; 
While every beam new transient colours brings, 
Colours that change, whene'er they wave their wings." 
I shall conclude my letter by wishing you an 
opportunity of seeing this delightful spectacle, 
which generally occurs in September. Adieu* 
i^ TO 
