WJiite's Patent Stave applied to PitSy 4'c. 



temperature than 

 the well, and the 

 other two smaller 

 ponds rise higher 

 in temperature in 

 proportion to their 

 distance from the 

 well, and in these 

 the gold and silver 

 fish seem to thrive. 

 All this may appear 

 trifling to the dahlia 

 fancier, but it may 

 be asked whether 

 my water conserva- 

 tory, with all its ap- 

 pendages, does not 

 afford as much varied enjoyment to a contemplative mind as can 

 arise from gazing on the finest cupped dahlia that ever bloomed ; 

 nor do I know of a better situation for keeping autumn struck 

 dahlia cuttings during the winter. 

 Annat Cottage ^ April 18. 1840. 



Fig. 3. 



Isometrical View. 

 The inner frame is shown by dotted lines. 



Art. II. On the Application of White s Patent Stove to the Heating 

 of Pits ajid other Plant Structures, By James M'Nab, jun. 



In compliance with your request to obtain further information 

 regarding the application of White's Patent Stoves to horti- 

 cultural structures, I beg to say that I proceeded to Had- 

 dington on the 7th of April last (1840), in order to witness the 

 various methods which Mr. White has had recourse to for 

 heating houses, pits, &c., with his patent stoves ; and, from what 

 I have seen of them during my short visit, I feel pretty confident 

 that they will ere long become generally adopted and useful, 

 provided they be fitted up with care and by qualified individuals. 

 I first examined Mr. White's vinery, figured in the following 

 diagrams to a scale of gV '"• to 1 foot. 



Fig. 4. 



Elevation and End View. 



a, End view of iron cover over stoke-hole. b. Ventilators which open inwards from below. 



c, Front view of iron cover. d. Chimney can. 



B 2 



