20 D1VI BOTANICI. 



end, by spreading before us whole regions of new space for the exer- 

 cise of our moral and intellectual faculties. 



As a few practical questions, however, I may state — 1st. It is pro- 

 bable that the Ashby coal field is continued beneath the red sand- 

 stone to the west and south, but at too great a depth to render its 

 working practicable, for the present generation at least. 2nd. It is 

 improbable that coal exists in the eastern portion of the county, or 

 there would be some of the rocks connected with it at the surface, 

 somewhere on the east or south of Charnwood Forest ; the elevation 

 of the forest rocks having taken place after the formation of the coal 

 strata, and the line of that elevation running from north west to- 

 wards the south east. 3rd. It is not improbable that rock-salt should 

 be found in the south east of the county, in the upper portion of the 

 new red sandstone, as a salt spring exists at Shearsby. 



There are many minor practical points in which a knowledge of 

 the geological structure of the country would be useful, but which 

 would require more minute details. 



DIYI BOTANICI ; 



SKETCHES OF BOTANISTS WHOSE NAMES ARE COMMEMORATED 

 IN THE APPELLATIONS OF PLANTS. 



Article the Second. 



LlNN JE us exercised a delicate and judicious discrimination in his 

 adoptions of botanical names which perpetuated the reputation of 

 personages by whom, in early times, the investigation of plants had 

 been advanced or encouraged. Feeling conscious of his own quali- 

 fications, and asserting his well-established right, to administer the 

 office of a phytological lawgiver, the " Immortal Swede" promul- 

 gated Rules* for limiting the practice of honorary " denomination" 



* These Rules, with many equally good ones besides, stand clearly defin- 

 ed bv Linnaeus himself; in the excellent work which contains an exposition 

 of his phytological principles — his Philosophia Botanica, in qua explkatur 

 Fundaments Botanica cum ilrjinitionibtis partium, e.remp/is terminorum, observa- 



