Field Meetings, 1909. 157 
under a log. The common slug Agviolimax agrestis occurred 
everywhere in both its types. The roadside drains of Fishtoft 
and vicinity were investigated, and yielded abundance of Limnea 
pevegva, a few L. truncatula, a number of L. palustris vars. tincta 
and voseolabiata, plenty.of Valvata cristata, Planorbis umbilicatus, 
Pl. vortex, Pl. spivorbis, and Aplexa hypnorum, and at one place 
numerous Spherium lacustve. Examples of Zua lubrica and 
Hygvomia hispida were found, and H. aspersa and H. nemoralis also 
occurred, while Mr. Kime, of Boston, brought in a few immature 
_ H. hortensis. Although the surface geology of the area visited is 
not favourable for expecting a large number of species of land 
mollusca, there is no doubt that further work will yield additional 
material. 
Miss Stow reports on, the Galled plants found at this 
meeting as follows:—Senecio jacobe and S. erucifolius by Diplosis 
jacobea. The swollen seed-heads were very conspicuous on these 
two species. The latter was also found having the leaves galled 
by a mite, up to the present unnamed. Salix alba and S. fragilis 
by Nematus gallicola, Crategus monogyna by Cectdomyia crate gt, 
Atriplex angustifolium by Aphis atriplicis, Rosa canina by Rhodites 
 yose, Vicia cracca by Diplosis lotis, Bursa bursa-pastoris by Cystopus 
candidus, Ammophila arenavia by Eurytoma hyalipennis, Trifolium 
filiforme by Eviophyes plicator var. trifolit, and by Apion pubescens. 
Miss S. Catherine Stow acted as Botanical secretary, and 
the following is.extracted from her report. It contained 162 
species and varieties, which is a remarkable record for estuarine 
alluvium, only varied by one little patch of shingly gravel not far 
from the Blue Anchor, which gives this district and natural 
history division Ammophila arundinacea, Sedum acre. There was 
~ Sagina apetala as weli as S. procumbens, both the maritine Spergu- 
— davia, Acer campestre, Ononis spinosa, Medicago arabica, near Skirbeck 
Church. Trifolium fragiferum and T. filiforme as much an alien 
there as Melilotus parviflorus. Bupleurnm tenuissimum, and Carum 
_segetum, along with CEaanthe lachenalu. Dipsacus sylvestris was not 
far from Aster tripolium and its variety discoideus. Artemisia 
_ maritima in its true home might be sent off against A, vulgaris, an 
alien in Boston Dock, which is the flowering place of many 
- foreign species. Senecio evucifolius was quite out of place on Hobhole 
