White's Patent Stove applied to Pits, 8^c. 



_B_ 



shown in the section, Jig. 8. at a. The 

 treatment used for the small stove was 

 the same as described for the large one, 

 the thermometer in the evenings ranging 

 from 70° to 75°. 



Fig. 9. is a vertical profile of this pit 

 with the sashes on. 



I next visited the garden of Alexander 

 Cunningham, Esq. This gentleman is a great enthusiast m horti- 

 culture ; and, being pleased with this novel method of heating, he 

 agreed to have a range of pits put up, and to be heated with one 

 of the patent stoves on Mr. White's plan. Mr. Cunningham's range 

 is 24 ft. long, 7 ft. 6 in. wide, 3 ft. high at back, and 18 in. in front. 

 It is divided into three spaces, as shown at « 6 c, Jig. 10. The 



Fig. 9. VeHical Profile of Mr. 

 White's Vine Pit, 



Fig. 10. Ground Plan of Mr. Cunningham's Pits for Grapes, Melons, and Peaches. \ 



smoke pipe is of cast iron, which is found to answer much better 

 than the malleable iron ones first used by Mr. "White. The pipe 

 is laid in a built flue with movable covers, instead of fire-clay- 

 cylinders, as used in Mr. White's vinery. Fire-clay cylinders 

 are more expensive but much neater-looking than the built ones. 

 The stove in Mr. Cunningham's pit is placed at the front or 

 south-west corner, and the heat carried along the front 

 below the level of the soil^ as shown in the sections in 

 fig H^ 



Fig. II. 



Pit for -Grapes. Pit for Melons. Pit for Peaches. 



The first division of Mr. Cunningham's pit, occupying three 

 sashes, is planted with vines ; the next, of two sashes, with 

 melons ; and the third, also of two sashes, with peaches. At 

 the period of my visit it was Mr. Cunningham's wish to have 

 most heat in the vine pit ; and accordingly two or three of the flue 

 covers were tilted up in it, and one in the melon department; 

 after a while, when less heat will be r.§quired for the vines, the 

 covers will be shut down and those in the melon and peach 



