260 
THE MIDDLE LIAS OF NORTHAMPTONSHIRE. 
145. Ag. fimbriatus, Bolt . Bare. There can be little doubt 
that Withering’s Ag. infundibuliformis, var. 2, “ Bolt., 
61,” is truly this species ; “ in the Park at Packington,” 
With., 154. [Clusters of it have been found on old 
logs in a garden at Handsworth, Staffordshire.] 
146. Ag. ostreatus, Jacg. On stumps and logs. Bather 
rare. Esculent. Nov.-Jan. Edgbaston Park, With., 
294; near Studley Castle; Oversley Mill, Purt., ii., 
655; Kenilworth, Russell, List. ; Driffold Lane and 
Sutton Park; Legge Lane, Birmingham. 
147. Ag. enosmus, Berk. On stumps. Bare. Sept. Elm, 
by Bed Lane, Kenilworth, Russell, lllustr. 
148. Ag. salignus, Fr. On trunks of trees. Bare. Oct. 
On a stump, near Warwick, Perceval. 
149. Ag. petaloides, Bull., var. /3, Spgthulatus, Pers. Ag. 
spathulatus, Purt. On the ground. Bare. Oct. 
Oversley and other places in this neighbourhood, Purt., 
ii., 656; cf. iii., 237, 431. 
150. Ag. acerosus, Fr. Very rare. Dim spits Lane, Kenil¬ 
worth, Russell, lllustr. 
151. Ag. applicatus, Batscli. On rotten wood. Oct. Bosal 
Lane (Bose Hall Lane), Oversley, Purt., ii., 659. Sutton 
Coldfield. 
152. Ag. chioneus, Pers. On wood. Bare. Oct. Sutton 
Park, on fragments of bark. 
(To be continued.) 
t r \ r f r > v 
THE MIDDLE LIAS OF NOBTHAMPTONSHIBE. 
• r = t 
BY BEEBY THOMPSON, F.C.S., F.G.S. 
( Continued from page 148.) 
Part V.—The Middle Lias considered as a Beceptacle 
for Water, whereby Floods may be mitigated. 
'/.The last few years, in this country, have been compara¬ 
tively dry ones, and on this account chiefly, I presume, very 
little has been heard of floods, or river conservancy, or 
drainage schemes. It is only a few years, however, since 
excessive and destructive floods were of frequent occurrence 
in the Midland districts, and there was considerable discussion 
as to their cause, and as to how they might be prevented. 
The very fact that such destructive floods have not occurred 
along the Nen valley recently, points conclusively to the main 
cause of such floods, viz., excessive.and unseasonable rainfall. 
