Amongst these are included : — Myosuriis minimus, Fumaria capriolaia^ Helian- 
ihemum vulgare, AUhoea officinalis, Hypericum pulchrum. Geranium pusillum^ 
Carlina vulgaris, Lythrum salicaria, Solanutn nigrum, Digitalis purpurea^ 
Vetbascum thapsus^ Gymnadenia conopsea. Euphorbia amygdaloides, etc. 
Mr. H. H. Corbett writes: — Probably few places can show sucli numerous 
changes in plant association as can the escarpment on which Crosby Warren 
stands. The Lias clays seldom come to the surface, except where they are exposed 
by iron mining operations. For the most part they are covered with blown sand 
and peat. Where the surface water is held up by the underlying clay, small ponds, 
bogs, and marshes are formed. Where the sand lies thick and there 's free 
drainage, is a purely psammophilous flora, and every gradation, from one extreme 
to the other, oceurs. As we ascend the hills behind Frodingham a sequence of 
associations is met with, of which the following may be taken as a type : 
(1) Damp Grass Land, with patches of sand, /uncus glaucus, J. con- 
S^lomeratus, Cafduus palustris, Stnecio aquaticus, Carex arenaria, 
gradually changing to 
(2) Sand, with Senecio jacobaa, Pteris aquilina. The latter forms a dense 
jungle bordering 
(3) Marsh, with Salix cinerea, Myrica gale, Juncu^s spp., Typha latifolia, 
Carex spp., Alenyanthes irifoliata, Poieniilla palustre. Sphagnum spp. 
This association gradually changes to 
(4) Thin peat over sand, with Salix aurita, HydrocotiU vulgaris, Anagallis 
tenella, Eryihnza ceniaurea, etc. This gives place to 
(5) Blown Sand, with Senecio jacobeea, Teucrium scorodonia, Pteris aquilina 
(stunted , Equisetum sylvaticum. Erica cinerea, and Calluna vulgaris. 
Besides the above, which may be called the natural associations of the 
district, there are some very interesting points for study where, in consequence of 
mining operations, wide areas of recently disturbed soil are exposed for the benefit 
of the more energetic of colonizing plants. Here a totally different flora is to be 
found ; among the more prominent of the usurpers being Epilobium angustifoltum, 
Apera spica-venti, Diplaiaxis muralis, Sisymbrium Sophia, Rhinanthus major, 
Echium vulgare. Borage officinalis, etc. In fine, ecological botanists are not 
likely to have a blank day at Frodingham ! 
Mosses and Hepatics. — The Yorkshire Bryological cCommittee will be 
officially represented. 
Algae. — Mr. M. H. Stiles, F.R.M.S., writes that some years ago in one of 
the shallow ponds on the sandy common, Volvox lobator was met with. 
Fungi. — The Yorkshire Mycological Committee will be officially represented by 
its Secretary, Mr. C. Crossland, F.L.S. 
VERTEBRATE ZOOLOGY.— The Vertebrate Section] will be officially 
represented. 
Mammalia. — Squirrels, Stoat, Weasel, Fox, Hedgehog, Mole, and Long- 
eared Bat. 
Reptiles and Amphibia. — Viper, Grass Snake, and Sand Lizard. 
Birds. — Miss Hawkins has compiled a list of the birds of the district which 
can be consulted at headquarters. Amongst them may be mentioned Kestrel, 
Gold-crest, Great Tit, Long-tailed Tit, Kingfisher, Nightjar, Tree-creeper, 
Nuthatch, Heron, Curlew, etc. 
CONCHOLOGY — The Conchological Section will be officially represented by 
Mr. W. Denison Roebuck, F.L.S., and Mr. J. F. Musham. 
Land and Freskwater MoUusca. — The parishes of Scunthorpe and 
Frodingham are fairly rich in land molluscs, especially along the Railway Embank- 
ment, where CceMioides acicula is to be obtained alive, also Hyalinia fulva. 
