234 YORKSHIRE AND LINCOLNSHIRE UNIONS. 
C. fulva, *C. lepidocarpa, *C. rostrata, C. vesicaria, Calamagrostis 
epigetos, *Lastrea Thelypteris, Osmunda — extinct? *Botrychium 
lunaria, Selaginella selaginoides. About 190 species were observed 
in all. Valuable lists were received from Messrs. C. Waterfall and 
J. H. Rowntree. 
Mr. F, W. Fierke reports :—The Conchological section was 
represented by Mr. John Beaulah (Raventhorpe), Mr. W. Denison 
Roebuck, F.L.S., and the Hon. Sec., Mr. F. W. Fierke (Hull). The 
conchologists had on this occasion the advantage of the experience 
and knowledge of a local collector, Mr. John Beaulah, who has 
resided in the district for many years and intelligently studied the 
natural objects around him, more especially the mollusca. After 
inspection of the Gull ponds Mr. Beaulah conducted his party 
through High Wood, Scawby Park, and Burton Lane Plantation, 
which comprised the route selected for conchological investigation. 
It was somewhat disappointing that notwithstanding the rain in the 
morning there was a paucity of molluscan life in the woods. The 
vegetation in the Burton Lane Plantation was said usually to be very 
productive of Vertigo edentula, but during the whole of the time 
only one fully developed specimen was promiscuously secured by 
Mr. Roebuck. C/ausilia laminata was fairly abundant and diligent 
search was made for Helix dapicida, which Mr. Beaulah had known 
to occur years ago near some ash trees, but the conchologists did not 
on this occasion succeed in recording it. Molluscs are at all times 
and places liable to an unaccountable fit of perverseness and although 
a locality may prove prolific at one time search for them on 
a subsequent occasion may be absolutely futile. A later date, too, 
would no doubt, have been more favourable, but at any rate the 
conchologists were fully convinced from what they saw of the 
character of the district traversed and Mr. Beaulah’s glowing descrip- 
tions that things were not what they seemed. As it was, such 
thorough-going woodland species as Hyadinia fulva and Helix aculeata 
were by no means of infrequent occurrence and in the sand-pit near 
Scawby Park var. alba of Helix rotundata was quite plentiful. In 
Scawby Pond a search was made for Dreissena polymorpha, which 
Mr. Beaulah informed the party was introduced there some years ag 
from the Ancholme, but no trace of it could be found. It is not 
improbable the conditions there would interfere with its favourable 
propagation, as it is essentially a river species. A valve of Uaio 
pictorum was found in the pond. The return journey was made by 
the aforesaid Burton Lane Plantation which has every appearance of 
being very promising ground for investigation and, at the appointed 
time, Mr. Beaulah’s party, reinforced by another contingent, were 
Naturalist, 
