_Evotomys alstoni_, 112; _E. erica_, 113; _E. glareolus_, 110; _E. skomeriensis_, 112 Fair Isle field mouse, 92 Fallow Deer, 130, Pls. 78, 82 Fawn, 132 _Felis silvestris_, 75 Ferret, 75 Field Mouse, Bute, 92; " Fair Isle F.M., 92; " Hebridean F.M., 92; " Long-tailed F.M., 91; " St. Kilda F.M., 92; " Short-tailed F.M., 105, Pls. 67, 69 Fitchew, 73 Flesh-eating Mammals, 52 Foulmart or Foumart, 73 Fox, 52, Pls. 34, 35 Frog, Common, 157; " Edible F., 162; " Tree F., 165, Pls. 97-101 Furze Evvet, 139 Gnawing Mammals, 78 Golden Back, 170 Grass Mouse, 108 " Snake, 146, Pls. 91A, 91B, 91C, 92A, 92B, 93 Great Bat, 46, Pls. 13, 26, 29 " Newt, 173 Green Lizard, 142 Hair, characteristic of Mammals alone, 7 Hairless Mouse, 94; H. Rat, 100 Hare, Alpine, 121; " Brown H., 117; " Irish H., 123 Harvest Mouse, 86, Pls. 54A, 54B, 56 Hebridean Field Mouse, 92; H. Vole, 109 Hedgehog, 9, Pls. 1-4 Hind, 124 Hoofed Mammals, 124 Horse-shoe Bat, Larger, 34, Pls. 14, 15; " Lesser H.B., 36, Pl. 17 House Mouse, 92, Pls. 58, 60 Huxley on Natural History Knowledge, 2 _Hyla arborea_, 165 Insectivora, 9 Irish Hare, 123; I. Rat, 99 Islay Shrew, 25 _Lacerta agilis_, 140; _L. muralis_, 142; _L. viridis_, 142; _L. vivipara_, 136 Leisler's Bat, 48, Pls. 28, 30 _Lepus europæus_, 117; _L. hibernicus_, 123; _L. timidus_, 121 Lesser Shrew, 25 Lizard, Common, 136, Pls. 84, 85, 87; Green L., 142; Sand L., 140; Wall L., 142 Long-eared Bat, 49, Pls. 31, 32 Long-tailed Field Mouse, 89 _Lutra vulgaris_, 59 Mammals, 4, 9 Man-eater, 177 Man-keeper, 177 Marten, 63 _Meles taxus_, 55 _Micromys minutus_, 86 _Microtus agrestis_, 105; _M. orcadensis_, 109 Midwife Toad, 172 Mole, 13, Pls. 5-7 Mole-heaves, 16 Mole's "fortress," 16 _Molge cristata_, 173; _M. palmata_, 177; _M. punctata_, 176 Mouse, Dog, 105; " Dor M., 82; " Field M., 91; " Grass M., 108; " Hairless M., 94; " Harvest M., 86; " House M., 92; " Marsh M., 105; " Wood M., 89 _Mus muralis_, 92; _M. musculus_, 92 _Muscardinus avellanarius_, 82 _Mustela erminea_, 66; _M. eversmanni_, 75; _M. hibernicus_, 69; _M. martes_, 63; _M. nivalis_, 69; _M. putorius_, 73 _Myotis bechsteini_, 40; _M. daubentonii_, 41; _M. mystacinus_, 37; _M. nattereri_, 39 Natchet, 172 Natterjack, 170, Pls. 104, 105 _Neomys fodiens_, 27 Newt, Common, 176; " Crested N., 173; " Great N., 173; " Palmate N., 177; " Spotted N., 176; " Warty N., 173, Pls. 106-111 Noctule, 46 _Nyctalus leisleri_, 48; _N. noctula_, 46 Observation, 1 Orkney Vole, 109, Pl. 70 _Oryctolagus cunicularis_, 113 Otter, 59, Pls. 38, 39 Palmate Newt, 177, Pls. 110, 111