26 ALPINE OR ROCK-PLANTS. 



Osmunda regalis, and Alpines, Adoxa, Chrysosple- 

 nium, Marchantia, &c., can be grown. 



On the South and two Ends, 



A mixture of light sandy loam and peat, containing 

 a good deal of white sand, for Helianthemum, Iberis, 

 Stachys Corsica, Achillea tomentosa, Saxifraya, &c. 



On the Top of the Rock-work, 



Very light loam, and a little peat and white sand, 

 for such as Thymus serpyllum, Saocifraga oppositi- 

 folia, Rhodiola rosea, &c. The latter is common in 

 various Alpine districts, and is found abundantly 

 among the rocks on the south-west coast of Argyle- 

 shire. 



Along the margin of the pond, and on the Rockery, 

 soil composed of sandy loam and a good deal of 

 gravel (not too coarse) ; or, what suits better, where 

 it can be had, stone, or rather slate crumbled away 

 into a resemblance of soil. It is found plentifully 

 on the banks of mountain streams. As to the soil 

 suitable for the cavities in the stones, it will be 

 described under the head Arrangement. 



After having distributed the soil, &c., petrifactions, 

 marcasite, or any other curious or rare specimens of 

 minerals, may be placed here and there among the 



