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334 in mistletoe oaks; and it will be observed in the list which follows that there are none reported in the northern half of Great Britain.

The subject has been recently studied by M.H. Gadeau de Kerville, who records in Normandy alone no less than 26 mistletoe-bearing oaks, living or recently felled, of which a list with exact particulars of their locality is given, pp. 298-301. An excellent illustration of one of the finest of these growing on the farm of Bois, at Isigny-le-Buat, Department of Manche, shows a large and well-shaped tree, about 60 feet by 16 feet, of the pedunculate variety, which is covered with tufts of mistletoe, some of them growing on the trunk, and of very large size. M. de Kerville estimates the age of this tree at 200 to 300 years, and says that it has begun to deteriorate, as the dead branches show. M. Eugène Ormont states that a tuft of mistletoe of about a foot in length, which he examined on an oak, was eleven years old and seemed slower in its growth and yellower in colour than mistletoe growing on the apple.