LEPIDOPTEROUS: INSECTS. 87 
excepting that in which the sense of smell was sup- 
posed to reside. 
« The latter method appearing the more a 
able and decisive, we seized several bees, and, compel- 
ling them to unfold the trunk, filled the mouth nearly 
with flour paste. When this was dry enough, so that 
they could not rub it off, they were released, and 
none seemed to suffer any inconvenience from it. 
They breathed and moved with the same facility as 
their companions. Honey, however, did not attract 
them, as they neither approached it, nor were they 
affected by odours which, in other cases, are offensive 
to them. Pencils were dipped in the oil of turpentine 
and cloves, in ether, in fixed and volatile alkalis, and 
their points insinuated very near their mouth. But 
the odour of these fluids, which would have occa- 
sioned a sudden shock to bees in their natural state, 
had no sensible effect on them. On the contrary, 
several mounted on the impregnated pencils, and 
traversed them with impunity: therefore, we held 
that their sense of smelling was obstructed by the 
paste put into their mouths.” * 
Humboldt is of opinion, that different parts of 
the body, in the various orders of insects, are 
adapted to the purpose of conveying to their senso- 
rium the odours of substances. 
* Huser on Bees. Edinburgh Translation, (Third Edi- 
tion,) 1821, p. 162—164. 
