[ 287 ] 
If the fwallows of Europe, when they difappear 
in thole parts, retreat to the coaft of Senegal, what 
necelfarily follows with regard to a Lapland 
fwallow ? 
I will fuppofe fucli a bird to have arrived fafely at 
his winter quarters upon the approach of that feafon 
in Lapland; but he muft then, according both to 
Monf. Adanfon’s and de Buffon’s account, return to 
Lapland in the fpring, or at lead: fome other fwallow 
from Senegal fill his place*. 
Such a bird immediately upon its arrival on the 
Southern coaft of Spain would find the climate and food 
which it defired to attain, ana all proper conveniences 
for its neft : what then is to be its inducement for 
quitting all thefe accommodations which it meets with 
in fuch profufion, and pulhing on immediately over fo 
many degrees of European continent to Lapland, where 
both martin and fwallow can procure fo few eaves of 
houfes to build upon ? What alfo is to be the in- 
ducement to thefe birds, when they have arrived at 
that part of the Norwegian coaft which is oppofite 
to the Ferroe illands, to crofs degrees of fea, in order 
* Mr. Stephens, A. S. S. informs me, that there was a neft of 
martins for twenty years together in the hall of his houfe in 
Somerfetfhire (near Bath) ; nor could the old birds procure food 
either for themfelves, or their young, till the door was opened in 
the morning. 
Can it it be fuppofed that the fame birds or their defcendants 
could have fo long fixed upon fo very inconvenient a fpot, to 
which they conftantly returned from the coaft of Africa, neg- 
lecting fo many others, which they muft have always pafted 
by ? Does it not alfo afford a moft ftrong prefumption, that 
they were torpid during winter in the neighbourhood of this old 
hall ? 
to 
