O76 Reports and Proceedings— 
Having briefly sketched, without criticism, some of the main points 
of the classification here formulated for the arrangement of the fossil 
Elasmobranch Fishes, we have only to add that it is based principally 
on the study of the structural characters, and an intimate knowledge 
of the numerous remains in the collection whose arrangement forms 
part of Mr. Woodward’s official duties; and also on the study of 
many specimens in private or public collections. Wherever 
possible, the fossils have been carefully compared with recent forms, 
and, as we have seen, other systems of arrangement have been studied 
with a view to their adoption, wholly or in part. The result is a 
palzontological classification, apparently the most natural and practical 
hitherto suggested for this group of extinct fishes. Modifications, 
sooner or later, will probably have to be made when more is known 
regarding the structure and affinities of the obscurer forms, but this 
cannot affect the principle on which it is based. We commend the 
author for its inception, and also for the industry displayed in the 
preparation of the Catalogue, and shall look with interest for the 
publication of the second part, which we understand will contain 
the Holocephali and Ichthyodorulites. 
Six new genera and thirty-one new species are described, and 
most of them figured. 
Of the 17 lithographic plates, seven are double, and the whole 
contain about 280 figures, while there are 15 woodcuts in the text. 
The fossils have been drawn from nature by Miss G. M. Wood- 
ward with her usual fidelity to form and structure, and we would 
specially note the beautiful rendering of the ornamentation on the 
teeth of Acrodus in plates xiii. and xiv. W.D. 
INS Oi Saas)  /NINPID) deve OOums a DLN GS). 
ee 
GEOLOGICAL Soctery or Lonpon. 
_I.—June 5, 1889.—Prof. J. W. Judd, F.R.S., Vice-President, in 
the Chair.—The following communications were read :— 
1. “Observations on some undescribed Lacustrine Deposits at 
Saint Cross, Southelmham, in Suffolk.” By Charles Candler, Esq. 
Commmunicated by Clement Reid, Hsq., F.G.S. 
These deposits are situated in the basin of the River Waveney, 
3d? miles HE. by N. of Harleston, and 9 miles E.N.E. of Hoxne. 
They occupy a hollow in the Boulder-clay towards the northern 
edge of the plateau locally known as “High Suffolk.” Saint Cross 
brickyard, which is the only section now visible, shows :— ft. 
a. Surface-soil and gravel... 1-3 
6. Red and white Toam, variable, ‘fine or "coarse, sandy | or calcareous. 
Elephant, Horse, ete., at base of the bed... ... 3-8 
ce. Fine, tenacious, grey and red clay, with carbonaceous seams towards 
the base. V% “alae, Bythinia, Pisidium. ... 2-5 
d. Black peaty loam and sand, worked to a depth of 5 feet, “but no bottom 
reached. Seeds and freshwater shells caliente 5- 
e. Chalky Boulder Clay .. 
No implements Thetis yet hee fomadl | in oa “ae he fhedee but 
Pleistocene Mammalia (determined by Mr. HE. T. Newton) occur in 
