£78 ON THE GEOGRAPHICAL DISTRIBUTION 
GramineiB;, - 65 
Gentianeae, - 9 
Geranise, - 1 4 
Hypericinae, - 8 
Hydrocharideae, 2 
Irideae, - - 2 
JuncesBj - - 7 
Lentibulariae, 1 1 
Lycopodineae^ 5 
Leguminosse, 44 
Labiatae^ - 47 
Malvaceae, - 5 
Melanthaceae, I 
Naiades, - 12 
Oleinae, - - 2 
Onagrariae, - 7 
Orobancheae, - 3 
Orchideee, - 18 
Portulacese, - 2 
Pediculares, - 1 
Papaveraceae, - 8 
Polygoneae, - 12 
Plantagineae, - 5 
Primulaceae, - 14 
Plumbagineae, 1 
Rharani, - - 3 
Rubiaceae, - - 11 
Rosaceae, - - 40 
Ranunculaceae, 28 
Solaneae, - - 7 
Scrophularinae, 24 
Smilaceae, - 4 
SaxifrageaE?, - 12 
Semper vivae, 13 
Salicariae, - 2 
Thymelaeae, - 1 
Tiliaceae, - 1 
Umbellifereae, 36 
Violeae, - - 8 
Verbenaceae, - 1 
Musci, - - 200 
Lichenes, - 207 
Hepaticaa, - 24 
Alg£e, - - 100 
Fungi, - 290 
May not the general type of the vegetation of a country 
be considered as indicative of its geology ? — Were the Ericas 
ever found upon Chalk or Limestone ?^ — Are not the follow- 
ing species always found upon these ? Chlora perfoliata. 
Astragalus glycyphyllos and hypoglottis, Neottia spiralis. 
Orchis pyramidalis, Cistus helianthemum, &c. ? Is not 
Arenaria verna found on every lead-mine in England ? 
Does not the Pinguicula vulgaris, Vaccinium oxycoccos, 
Empetrum nigrum, &c. indicate Sandstone ? Where can 
we find a single rare plant on Alluvial soil ? 
Beginning at the Spurn, and following the coast of York- 
shire as far as Bridlington, and proceeding up the Humber 
to a little above Hull, including the whole of Holderness — 
the vale of York, and from South Cave to Selby, as well 
as part of the plain of Cleveland to the Tees, the whole 
country is composed of Alluvial soil : here the botany pre- 
sents nothing .pecuhar, having the same plants as the Low- 
lands of other parts of England. We no sooner cross the 
