192 



REVIEWS. 



Art. I. Verhandlungen des Vereins zur Beforderung des Gar- 

 tenbaues in den K'dniglich Preussischen Staaten. Transactions 

 qf the Society for the Advancement of Gardening in the Royal 

 Prussian States. 4to, 2 Plates. Vol. V. Berlin, 1829. 



(^Cont'muedfrom p. 96.) 



10. Some Observations on the Cidtiire qf Alpine Plants. 

 By Dr. Link. 



Plants are called alpine when their natural habitations are 

 where trees cannot exist, such as the tops of mountains, or 

 very high degrees of latitude. They are, however, often 

 found in various low situations, where they flower and pro- 

 duce their seeds as well as in those higher regions ; but this 

 is always referable to the agency of wind or water, which 

 convey the seeds from their original places of growth to the 

 lower parts of the country. These plants will grow very 

 well in a bed in the garden, the soil of which should consist 

 of one part peat, one part leaf-mould, and two parts pasture 

 ground, mixed with a little sand: the principal object of their 

 culture, however, is moisture. The alpine plants, although 

 they are in winter chiefly protected by snow in their native 

 places, can stand very severe frosts, to which they are 

 often exposed before the snow falls, or after it is melted. 

 They are also not much injured by the heat of the sun. In 

 their natural situation they are continually exposed to ex- 

 treme changes ; from severe frost during the night, to the 

 burning rays of the sun and to tempests during the day. 

 Artificial rockwork for the cultivation of these plants is of no 

 other use than for ornament. The cultivation of alpine 

 plants in pots is in so far preferable as it is easier to supply 

 them with those advantages which they have in their wild 

 state : in winter they may be removed to a cool moist place, 

 instead of exposing them to the dry frosts ; in summer they 

 can be kept moist, which is the most essential part in the 

 cultivation of alpine plants. 



11. On the Method to increase the Production qf Vines, and to 

 protect them from Spring Frosts. By Baron Kottwitz. 



The vine is manured with bullock's blood in autumn, and 

 the shoots are laid down and covered with dry leaves ; by 



