148 INDEX. 
Thunder-storms, lvii Ulota, 117 Vicia cracca, 18 
Thurso beds, lxxi University, Edinburgh, hirsuta, 18 
Thymus serpyllum, 54 XXxix montana, 18 
Tidal erosion, lxxx, lxxxi | University, St Andrews, sativa, 18 
Topography, xiii, lxxix xlv sepium, 18 
Tortulacezx, 116 Upper Old Red, Ilxxii, sylvatica, 18 
Tortula, 116 Ipro-diyjn IbsS:a be Viola arvensis, 8 
“Tour through Orkney | Utrica dioica, 65, 102 palustris, 8 
and Zetland,”’ xxxvii urens, 65, 102 Riviniana, 8 
Traill, Geo. W., xxxiii Utricularia minor, liii,59,| tricolor, 8 
Trifolium agrarium, 128 131 Volcanic rocks, lxxiv 
arvense, 17 Votaries, ix 
dubium, 17 -- 
medium, 17 . 
pratense, 17 VACCINIUM-MYRTILLUS, VW 
procumbens, 17, 104 XXxiv, 47 
repens, 17 microphylla, xxiv, 47 WALLACE, Dr, xxx, xxxv 
sylvestre, 17 rotundata, 46 Wallace, Rev. Jas., xxxv 
Trientalis Europe, 48, uliginosum, 46 Weathering, lxxiv 
132 vitis-idea, 46 Webera, 119 
Trigloghin maritima, 70 | Valariana officinalis, 33 | Weisia, 117 
palustre, 70 pyrenaica, 33 Wild animals, lxxxvi 
Triticum acutum, 91 sambucifolia, 33 Witcheraft, xxxvili 
barbata, 91 Valerienella olitoria, 33 
caninum, 91 Variability, xvii 
junceum, 91 Velocity of gales, lvii Bg 
repens, xxxii, 91 Veronica decussata, xix 
Trichostornum, 117 Veronica agrestis, 51 YULE-GIRSE, 19 
Trisetum pratense, 87 anagallis-aquatica, 52 
Trumbland House, xxiii arvensis, 51 
Truneata, 111 Beccabunga, 52 2 
Tudor’s ‘‘ Orkney and Buxbaumii, 52 
Zetland,” xxiv Chameedrys, 51, 182 ZANNICHELLIA POLY- 
Turbarian periods, xciv eximia, 51 CARPA, 73 
Tussilago farfara, 37, 99 hedereefolia, 51 tenuissima, 73 
Typha latifolia, 69 humifusa, 51 Zostera angustifolia, 74 
officinalis, 51 marina, 74 
polita, 51 nana, 74 
0 scutellata, 52 stenophylla, 74 
ULEX EUROPEUS, 16 serpyllifolia, 51 Zygodon, 117 

Wm. Peace & Son, PRINTERS, K1RKWALL. 
