248 Species and Varieties of the Horsechesfmif. 



and Philip Miller left here; and although some hundreds of 

 good gardeners have been sent to the first places from this 

 garden, yet we do not hear of any one of them improving on 

 this hint. 



We apprehend that, by having the fire inside, one third of 

 the fuel is saved, from the quantity of cold damp air consumed 

 in the ignition ; and, moreover, the fire draws in a fresh supply 

 of air and oxygen through the laps of the glass, which is a great 

 advantage to the plants in long frosts, when air cannot be given 

 in the usual way ; also the cold damp heavy air (which is always 

 nearest the floor) is put in motion, and carried away by the 

 suction of the fire the moment it is lighted. 



We suspect that some objection may arise on the score of 

 appearances ; but this can always be obviated by placing the 

 furnace under the stage, or under a flap, in the green-house and 

 conservatory, and behind a trellis in the peach-house and vinery. 



There is a very bad practice of building most of these glass 

 houses on the level with the walk outside ; whereas, if the floor 

 in the house be raised from 2 ft. to 4 ft., it will give a good 

 draught to the flues, and more light and air to the plants inside. 

 It should be always remembered that every one of the plants 

 that we protect with glass is a native of a clearer and warmer 

 country than the " salubrious climate of Britain." The ground 

 being thus raised will keep the roots of peaches and vines farther 

 from a wet or an irony subsoil ; and, in plant-houses, the eleva- 

 tion will give an opportunity for a useful frame in front for 

 protecting plants in winter. 



Botanic Garden^ Chelsea, Feb. 1835. 



Akt. VIII. On the different Species and Varieties of the Horse- 

 chestnut. By M. C. R. 



I MAY state, I believe without much fear of contradiction, that 

 the different species and varieties of ^'sculus (including Pavm) 

 are very little known either by gardeners or nurserymen. The 

 following sorts are cultivated for sale in the Fulham Nursery, 

 viz. : - — 



-^'sculus Hippocastanum ^'sculus ohioensis 



Hip. fol. aur. discolor 



Hip. fol. argent, glabra 



macrostachya humilis 



carnea (rosea) (rubicunda) flava 



Whitley's fine scarlet Vkvia 



americana p>iv. serrata 



pallida Pav. erecta 



-•^y^".^ Pay., deep scarlet 



hjbrida Pav., macrostachya 

 pumila 



