Doctor Fernie (28) gives some interesting extracts with regard to the hog-louse and the woodlouse. The latter he seems to have identified quite correctly as _Oniscus asellus_. He calls the former, however, indiscriminately, "the common armadillo" (which is the old name for the pill-woodlice now known as _Armadillidium_), "the pill millipede" and "_Glomeris marginata_." The last two names are those of another creature, not a crustacean, which when it is rolled up can be very easily mistaken for an _Armadillidium_, though, when it uncurls, it will be seen to have many more than seven pairs of legs. The local appellations applied to the hog-louse by Doctor Fernie, and his remarks with regard to its commonness, tend to show that it is _Armadillidium vulgare_, to which he really refers, and the use of which in medicine was commonly general. Hog-lice were prescribed for scrofulous diseases and obstructions of the liver and digestive organs, among other things, and the London College of Physicians directed that the creatures should be prepared by suspending them in a thin canvas bag placed within a covered vessel over the steam of hot spirit or wine, so that being killed by the spirit they might become friable. Hog-lice and Woodlice were also administered alive, while the former were also put down the throats of cows "to promote the restoration" of their cud, hence their name of "cud-worm." There seems to be considerable evidence that even in modern times Woodlice have had considerable remedial effect which depends upon "an alkalescent fluid" contained in them. =Local Names.=--Among the local names by which these creatures are known are those of "sow bug," "lucre pig" (Berkshire), "carpenter" and "chiselhog" (Berkshire). Doctor Fernie (28) gives a number of others:--"thrush-louse," "tiggyhog," "cheslip," "kitchenball," "chiselbob," "lugdor," "palmer," and "cudworm." In the eastern counties the same writer notes that they are known as "old-sows" or "St. Anthony's hogs" while the Welsh call them "little grey-hogs," "the little old women of the wood" or "grammar-sows," grammar signifying a shrivelled up old dame. _Oniscus asellus_ was sometimes called "socchetre," "church louse," and "chinch."