Ringmer, near Lewes, Dec. 9th, 1773.

Dear Sir,—I received your last favour just as I was setting out for this place, and am pleased to find that my monography met with your approbation. My remarks are the result of many years’ observation, and are, I trust, true in the whole, though I do not pretend to say that they are perfectly void of mistake, or that a more nice observer might not make many additions, since subjects of this kind are inexhaustible.

If you think my letter worthy the notice of your respectable society, you are at liberty to lay it before them, and they will consider it, I hope, as it was intended, as a humble attempt to promote a more minute inquiry into natural history, into the life and

conversation of animals. Perhaps, hereafter, I may be induced to take the house-swallow under consideration, and from that proceed to the rest of the British hirundines.

Though I have now travelled the Sussex Downs upwards of thirty years, yet I still investigate that chain of majestic mountains with fresh admiration year by year, and I think I see new beauties every time I traverse it. This range, which runs from Chichester eastward as far as East Bourn, is about sixty miles in length, and is called the South Downs, properly speaking, only round Lewes. As you pass along you command a noble view of the wild, or weald, on one hand, and the broad downs and sea on the other. Mr. Ray used to visit a family just at the foot of these hills, and was so ravished with the prospect from Plumpton Plain, near Lewes, that he mentions those scapes in his “Wisdom of God in the Works of the Creation” with the utmost satisfaction, and thinks them equal to anything he had seen in the finest parts of Europe.

For my own part, I think there is somewhat peculiarly sweet and amusing in the shapely-figured aspect of chalk-hills in preference to those of stone, which are rugged, broken, abrupt, and shapeless.

Perhaps I may be singular in my opinion, and not so happy as to convey to you the same idea; but I never

contemplate these mountains without thinking I perceive somewhat analogous to growth in their gentle swellings and smooth fungus-like protuberances, their fluted sides, and regular hollows and slopes, that carry at once the air of vegetative dilation and expansion . . .

. . . Or was there ever a time when these immense masses of calcareous matter were thrown into fermentation by some adventitious moisture: were raised and leavened into such shapes by some plastic power: and so made to swell and heave their broad backs into the sky so much above the less animated clay of the wild below?

By what I can guess from the admeasurements of the hills that have been taken round my house, I should suppose that these hills surmount the wild at an average at about the rate of five hundred feet.