INTRODUCTION. 5 to believe that the only two stragglers of this species should have come under one observer's notice. An interesting paper on the Bats of Epping Forest, by the late Edward Newman, F.L.S., is reprinted in Essex Naturalist (vol. ix., pp. 134-138). No reference will be made in this list to extinct British Mammals. The number of these which our present conditions of climate would suit is very small, and investigations concerning them, however interest- ing, give little help in determining the geographical distribution of the Fauna of to-day. It may be mentioned, however, in passing, that the only extinct British Mammals of whose existence in Essex we have any direct proof, are the Wild Swine, the Wolf, and possibly, the Beaver. The following interesting historical reference to the first-named animal, the Wild Boar, was contributed by Mr. Charles K. Probert, of Newport, Essex, to The Essex Note-Book and Suffolk Gleaner (Colchester, Oct. and Nov., 1885, p. 136). His information was derived from a manuscript among the muniments of Colne Priory, which contains the following passage : " The Survaye of the Lordshipps and Manors of Erles Colne and Colne Priory, parcel of the posses- sions of Roger Harlakenden, Esq., made in Anno Dni. 1598, by Israel Amyse, Esq. " Chalkny Wood conteineth 168a. 3r. 28p. This