Geological Society. 629 
Since the above was written, I have had the pleasure of 
receiving from Professor J. G. Andersson another (alco- 
holic) specimen of Hricius przewalskii from Tabool, Mon- 
golia. This one is a male, somewhat paler than the 
female, especially on the head. Its length from snout to 
vent is about 235 mm.; hind foot (s. u.) 43 mm. ; tail 
31 mm.; ear 33 mm. The cranial measurements are some- 
what similar to those recorded above; the nasals are a little 
Jonger and on both sides in contact with the maxillaries. 
Although the specimen is old, the sagittal crest is only 
little developed. 
PROCEEDINGS OF LEARNED SOCIETIES. 
GEOLOGICAL SOCIETY. 
January 4th, 1922.—Dr. G. T. Prior, F.R.S., 
Vice-President, in the Chair. 
The following communication was read :— 
‘Shal.s-with-Beef, a Sequence in the Lower Lias of the Dorset 
Coast.’ 
Part I.—Stratigraphieal. By William Dickson Lang, 
sce. f.G.S- 
The Shales-with-Beef lie between Table Ledge below and the 
Birchi Bed above, and consist of an upper 80 feet of brownish 
paper-shales with selenite, ‘beef,’ and limestone-nodules and 
lenticles ; and a lower 40 feet of bluish conchoidal marls with 
indurated marl-beds, beef, and limestone-nodules and lenticles. 
The following are the main palwontological divisions :— 
Es _ (6a. Birchi-tabular. Microderoceras birchi, Avrietites turneri, 
$3 8 | Xipheroceras spp., Cymbites. 
2 SES} 75a. Birchi-nodular. M. birchi, Ar. plotti, and allied forms. 
RECN ey ; 
= ao | 4h-w. Microderoceras spp. and Arietites spp. 
a 8 ra (t4e-g. Arnioceras hartmanni and allied forms. 
. ~~ 
RRSP : : 
SSS Ss | 74c-d. Ar. brooki. 
8-35, FORAY ANiiace ve Sa, r s 
Bee (0 f- » Arnvoceras spp., Arietites new spp., Sulciferites [ Spath | 
INQ Spp. 
go iii 70a-e. Pararnioceras [Spath] alcinoé and allied forms, Arnio- 
= ie nian 
: 3 3 | ceras spp. 
‘SASS 4 62 a-69 ce. Arniocerasspp., Agassiceras spp., but no Ag. striaries. 
s .2 2 ‘ F . Teles 
= Sac | 50-61b. Do., but with Agassiceras striaries. 
x o 
SON ebyee a ye. : ee, 
A Sx (53-54, Arnioceras, characteristic new species, and allied forms. 
