As Pennant was a Welchman, a scholar and a {270} naturalist, he will probably be considered good authority; and _Hyfr_, the most likely origin of the altered terms of the deer park-keepers. The word occurs twice in page 61. vol. ii. of the _Sportsman's Cabinet_, in the article on the Stag or Red Deer, where it is printed _Heavier_; and it will be found also as _Hever_, in Mr. Jesse's _Scenes and Tales of Country Life_, at page 349. WM. YARRELL. Ryder Street, St. James, Feb. 11. 1850. Mr. Halliwell gives the words _haver_ and _havering_, in the same sense as _havior_. Are not these words identical with _aver, averium_, in the sense of cattle, tame beasts? _Averium_, from the old French, _aveir_, i.e. _avoir_, originally meant any personal property; but like _catalla_, chattels, it came to signify more particularly the most important part of a peasant's possessions--namely, his live stock. Thus, in the laws of William the Conqueror (Thorpe's _Ancient Laws_, vol. ii. p. 469.), we find:-- "Si præpositus hundredi equos aut boves aut oves aut porcos vel cujuscumque generis averia vagancia restare fecerit," &c. The word may naturally enough have been applied to deer reduced to the state of tame and domesticated cattle. C.W.G. [TREBOR furnishes us with a reference to _Pegge's Anonymiana_, who endeavours to show that the proper term is "halfer;" on the same principle that an entire horse is spoken of, the word being pronounced "hâver" by those who call half "hâfe," while those who pronounce half with the open _a_ say "hauver:" while J. Westby Gibson suggests that Havior is _Evir_, from the Latin "_Eviro, Eviratus, Eviratio_," but admits that he can give no authority for the use of _Evir_.] _Sir W. Hamilton_ (No. 14. p. 216.).--Douglas says, that this Sir W. Hamilton was not _son_, but grandson and brother of the 1st and 2nd earls of Abercorn, his father having died _vitâ patris_. I therefore doubt that the inscription has been miscopied. "He was," Douglas says, "resident at Rome, on the part of the Queen Dowager;" but this could hardly be the service alluded to. C. _Dr. Johnson's Library_ (no. 14. p. 214.).--I have a copy of Dr. Johnson's Sale Catalogue. The title is as follows: "A catalogue of the valuable Library of Books of the late learned Samuel Johnson, Esq., LL.D., deceased, which will be sold by auction (by Order of the Executors) by Mr. Christie, at his Great Room in Pall Mall, on Wednesday, February 16. 1785. and three following Days. To be viewed on Monday and Tuesday preceding the Sale, which will begin each Day at 12 o'Clock. Catalogues may be had as above."