Preservation of Plants, during Winter. 



Fig. 1 . Ground Plan. 



a. Inner, or zinc-bottomed, frame, betwixt whichi and the outer frame there is a space of 6 inches, b. 

 c. Gold-fishpond. d, Footpath. e. Gold or silver fish . /, Pond for trouts, &c. 



like hoarfrost on its glass, and the plants within maintain a 

 healthy appearance. 



Geraniums, cinerarias, heliotropiums, &c., continue in a 

 healthy and slowly growing state, quite as fresh as in a con- 

 servatory. The small ponds c and e in fg. 1. are fed directly 

 from the well in winter, to communicate warmth to the water in 



Fig. 2. Section. 



a. Inner zinc frame. b, Outer frame. c. Small pond for gold or silver fish, d, Footpath. 



which are gold and silver fish. In summer the water directly 

 from the well would continue at about 47° (too cold for the fish); 

 and that it may acquire a higher temperature before it reaches 

 these small ponds wherein are also some rare aquatic plants in 

 pots, the whole water is directed first into the large trout pond 

 with a fall of some inches to prevent the water being too much 

 affected by the low temperature of that in the well ; from this it 

 falls into the silver- fish pond c, and thence into the gold-fish 

 pond e ; by this means the trout pond maintains a higher 



