212 Mr. J. Atkinson's Sketch vf the 



face, possessing almost every variety of soil to be found from 

 the level of the sea to the altitude of 2368 feet. Its Flora con- 

 sists of about 1400 species, of which upwards of 600 are Phas- 

 nogamous, the remainder Cryptogamous. They may be ar- 

 ranged under the following Natural Orders. 



Campanulaceas 



Dipsaceae . 



Ericeae . 



Euphorbiacese 



Filices . 



Graminea? . . 



Gentianeas . . 



Geraniae 



Hypericinoe 



Hydrocharideae 



I r ideas . . 



Junceae . 



Lentibularias 



Lycopodineae 



Leguminosae 



Labiatse , 



Malvaceae . 



Melanthaceae 



Naiades . . 



Oleinas . . 



Onagrariae . 



Orobranchese 



Orchideae . 



Portulaceae 



Pediculares 



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 following species 

 always found upon these? Chlora perfoliata, Astragalus gly- 

 cyphyllos and Iiypoglottis, Neottia spiralis, Orchis pyramidalis, 

 Cistus Hclicuithemum, &c. ? Is not Arenaria verna found on 

 every lead-mine in England ? Do not the Pinguicula vul- 

 garis, Vaccinium oxycoccos, Empetrum ?iigrum, &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 youth Cave to Selby, as well as part 

 of the plain of Cleveland to the Tees, the whole country is 

 composed of alluvial boil : here the botany presents nothing 



peculiar, 



