CLASS MAMMALIA. 67 Fuller, in his Worthies (1662, p. 348), refers to a de- vastation of some sixty or seventy years later, but which had a like dire result. He says : " I wish the sad casualties may never return which lately have happened in this county: the one, 1581, in the Hundred of Dengy (Stow Chron., Anno Citat.), the other 1648, in the Hundred of Rochford and Isle of Foulness (rented in part by two of my credible parishioners, who attested it, having paid dear for the truth thereof), when an Army of Mice, nesting in Ant-hills, as Conies in Burroughs, shaved off the grass at the bare roots, which, withering to dung, was infectious to Cattle. The March following, numberless flocks of Owls from all parts flew thither and destroyed them, which otherwise had ruined the country if continuing another year." William Lilly, the astrologer, in his almanac Merlinus Anglicus Junior, alludes to another invasion at Southminster, and says that at the same time in Norfolk, over as much as an hundred acres together, one could hardly set down his foot without treading on them. Arvicola glareolus, Schreber. Red Field-Vole or Bank Vole. This Vole is by no means common in Essex, according to my experience, although the first specimen recorded as British was described by Yarrell from an Essex example (cf. Proc. Zool. Soc, 1832, p. 109). I have seen a specimen from West Bergholt and another from Layer de la Haye. Probably more might be found if observers were careful to examine all the Voles they met with. There is a good description of this species by Mr J. E. Harting (Zool., 1887, p. 365), who records captures at West Bergholt and Layer de la Haye, both in Essex, and gives particulars of its distribution in Great Britain. Mr. Edward Rosling has recorded (Zool., 1885, p. 433) the capture of an albino specimen near Chelmsford, in