510 Notices of Memoirs—Pre-Devonian Beds of the Mendips. 
Abhandlung k. pr. Akad. Wiss., 50 vols.; as also the writings of 
Audouin, Audebert, Audubon, Audinet, and Bechstein, a list which 
might be considerably extended. 
The accumulated results of three years recording have now all been 
arranged and sorted under their respective genera, and, therefore, one 
set of entries is now available for reference by monographers so far as 
recording has proceeded. The duplicate set of entries has been par- 
tially arranged and further accommodation has been provided by the 
kindness of Dr. Smith Woodward in the Geological Department of 
the British Museum (Natural History), which has greatly relieved the 
pressure arising from the steady growth of material. ; 
TL.— INVESTIGATION OF THE PrE-Devontan Beps oF THE Menpirs.! 
al he principal objects which the Committee had in view were two 
in number—(1) To obtain a further series of fossils from the 
newly discovered Silurian beds of the area, (2) To investigate the 
distribution in the field of a peculiar coarse ashy conglomerate, and 
to ascertain its relations to the other deposits of the neighbourhood. 
With these ends in view a series of seven trenches was dug, and 
the information obtained from them was incorporated in a paper by 
the Secretary.” 
The most easterly of these trenches was dug in a field about 300 
yards §.S.W. of Tadhill Farm. It was carried to a depth of about six 
feet, and after passing through some 18 inches of surface material, 
entered a deposit consisting mainly of very fine yellow and brown ash, 
with subordinate bands of coarse ash. Many of the bands were 
crowded with fossils, which were identified by Mr. F. R. C. Reed. 
The series of fossils, though undoubtedly Silurian, and, in Mr. Reed’s 
opinion, probably of Upper Llandovery age, was insufficient to 
determine the point with certainty. 
A second trench dug at a point about 100 yards to the north of that 
in the fossiliferous tuff proved to be in trap (pyroxene andesite). 
The remaining five trenches were all dug in the neighbourhood of 
the rifle butts on Beacon Hill (about a quarter of a mile to the north 
of Beacon Farm), where the coarse ashy conglomerate was originally 
exposed in a target pit. Four trenches dug at different points in the 
neighbourhood of the rifle butts showed that the coarse ashy con- 
glomerate here probably occupies the whole area between the northern 
and southern outcrops of the Old Red Sandstone. A fifth trench was 
opened on the slope of the hill to the north of the rifle butts, but 
after passing through nine feet of Old Red Sandstone this trench was 
abandoned. 
1 Report of the Committee, consisting of Mr. H. B. Woodward (Chairman), 
Professor C. Lloyd Morgan, the Rev. H. H. Winwood, and Professor 8. H. 
Reynolds (Secretary). (Drawn up by the Secretary.) Read before Section C 
(Geology), British Association, Leicester, 1907. 
2 Published in the Quart. Journ. Geol. Soc., vol. Ixiii (1907), pp. 217-238. 
3 See list, op. cit., pp. 226-227. 
