Dear Sir,—If some curious gentleman would procure the head of a fallow-deer, and have it dissected, he would find it furnished with two spiracula, or breathing places, besides the nostrils; probably analogous to the puncta lachrymalia in the human head. When deer are thirsty they plunge their noses, like some horses, very deep under water, while in the act of drinking, and continue them in that situation for a
considerable time: but, to obviate any inconveniency, they can open two vents, one at the inner corner of each eye, having a communication with the nose. Here seems to be an extraordinary provision of nature worthy our attention, and which has not, that I know of, been noticed by any naturalist. For it looks as if these creatures would not be suffocated, though both their mouths and nostrils were stopped. This curious formation of the head may be of singular service to beasts of chase, by affording them free respiration: and no doubt these additional nostrils are thrown open when they are hard run. Mr. Ray observed that at Malta the owners slit up the nostrils of such asses as were hard worked: for they, being naturally straight or small, did not admit air sufficient to serve them when they travelled, or laboured, in that hot climate. And we know that grooms, and gentlemen of the turf, think large nostrils necessary, and a perfection, in hunters and running horses.
Oppian, the Greek poet, by the following line, seems to have had some notion that stags have four spiracula:
“Τετράδυμοι ῥινὲς, πίσυρες πνοίῃσι δίαυλοι.”
“Quadrifidæ nares, quadruplices ad respirationem canales.”
Opp. Cyn. Lib. ii. 1. 181.
Writers, copying from one another, make Aristotle say that goats breathe at their ears; whereas he asserts
just the contrary: “Ἀλκμαίων γὰρ οὐκ ἀληθῆ λέγει, φάμενος ἀναπνεῖν τὰς αἶγας κατὰ τὰ ὠτά.” “Alcmæon does not advance what is true, when he avers that goats breathe through their ears.”—“History of Animals.” Book I., chap xi.
LETTER XV.
Selborne, March 30th, 1768.
Dear Sir,—Some intelligent country people have a notion that we have in these parts a species of the genus mustelinum, besides the weasel, stoat, ferret, and polecat; a little reddish beast, not much bigger than a field-mouse, but much longer, which they call a cane. This piece of intelligence can be little depended on; but farther inquiry may be made.
A gentleman in this neighbourhood had two milk-white rooks in one nest. A booby of a carter, finding them before they were able to fly, threw them down and destroyed them, to the regret of the owner, who would have been glad to have preserved such a curiosity in his rookery. I saw the birds myself nailed against the end of a barn, and was surprised to find that their bills, legs, feet, and claws were milk-white.