Feb., 1889. middle lias of Northamptonshire. 41 
Eriophorum alpinum.. 
Nb. 
Lycopodium annotinum 
,, polystacliyon .. 
J. 
,, clavatum 
Carex echinata. 
M. 
Polytrickum commuue 
M. 
,, umbrosa (prsecox) 
E. 
Sphaerophoron coralloides 
L. 
,, atrata . 
N.C. 
Lecauora ventosa 
Ii. 
Plileum pratense 
Sv. 
Cladina raugiferina 
,, alpinum 
Nb. 
(Reindeer Moss) 
L. 
Poa Schlerocliloa 
L. 
Cladonia furcata 
,, alpina . 
R. 
(Reindeer Moss) 
L. 
Festuca ovina „. 
Tm. 
,, gracilis 
L. 
,. rubra. 
M. 
,, cornucopioides 
L. 
Equisetum sylvaticum 
Tm. 
,, uncialis 
,, palustre .. 
N.C. 
var. humilior 
L. 
Polypodium calcareum 
R. 
,, digitata 
„ vulgare, 
Lecidea contigua 
var. acutifolium .. 
Yk. 
var. meiospora 
Woodsia ilvensis 
R. 
Parmelia pliysodes 
Polystichum lonchitis 
R. 
,, saxatilis 
Asolenium trickomaues 
E. 
Ricasolia amplissima .. 
septentrionale .. 
R. 
Cetraria Islandica var. crispa 
Lycopodium selago 
(Iceland Moss) 
• • 
References to the Localities where the above Specimens were 
TAKEN I— 
B. Bergen. 
M. Molde. 
Tm. Tkrondlijem. 
Tt. Torghatten. 
Sv. Svartisen. 
N. C. North Cape. 
R. Romsdal. 
Ys. Vestnaes. 
So. Soeholt. 
U. Utvik. 
Yd. Yadheim. 
L. Laerdalsoren. 
J. Jostedal. 
Nb. Nigaards Brae. 
Vk. Vik. 
Y.F. Yoring Fos. 
E. Eide. 
THE MIDDLE LIAS OF NORTHAMPTONSHIRE. 
BY BEEBY THOMPSON, F.C.S., F.G.S. 
(Concluded from page 16 .) 
Additional Remedy. 
The additional remedy 1 have to propose has been already 
very explicitly described in previous pages, and so the details 
need not be given here. Briefly it consists in giving facilities 
for flood-water to get into the river gravel, which almost 
everywhere underlies the present river bed and stretches to a 
good distance on each side of it, and in providing dumb-wells 
or swallow-holes for this river gravel to drain into a good 
water-bearing bed below, from which Northampton and other 
towns and villages might be supplied with water. It does 
not aim so much at preventing floods as providing water; 
