Page:White - The natural history of Selborne, and the naturalist's calendar, 1879.djvu/215

Rh vast continents and oceans as distant as the equator. So soon does Nature advance small birds to their, or state of perfection; while the progressive growth of men and large quadrupeds is slow and tedious!

I am, etc.

LETTER XXII.

, Sept. 13th, 1774.

,—By means of a straight cottage chimney I had an opportunity this summer of remarking, at my leisure, how swallows ascend and descend through the shaft; but my pleasure in contemplating the address with which this feat was performed to a considerable depth in the chimney, was somewhat interrupted by apprehensions lest my eyes might undergo the same fate with those of Tobit.

Perhaps it may be some amusement to you to hear at what times the different species of hirundines arrived this spring in three very distant counties of this kingdom. With us the swallow was seen first on April 4th, the swift on April 24th, the bank-martin on April 12th, and the house-martin not till April 30th. At South Zele, Devonshire, swallows did not arrive till April 25th, swifts in plenty on May 1st, and house-martins not till the middle of May. At Blackburn, in Lancashire, swifts were seen April 28th, swallows April 29th, house-martins May 1st. Do these different dates, in such distant districts, prove anything for or against migration?

A farmer, near Weyhill, fallows his land with two teams of asses; one of which works till noon, and the other in the afternoon. When these animals have done their work, they are penned all