ON HEATING A GREENHOUSE. 225 



ARTICLE IV. 



ON HEATING A GREENHOUSE. 



BY MR. O. T. DALE, CHORLTON, NEAR MANCHESTER. 



Seeing by your last Number that one of your readers asks for 

 information relative to heating his greenhouse in winter, I feel happy 

 to give him a plan I am about to adopt. This subject I have now 

 been engaged upon for several years. I have tried many plans, but 

 I have found none of them to answer well ; however, I flatter myself 

 I have at last hit upon the right method. A full statement of it was 

 laid before several eminent members of the British Association, at 

 their meeting in this town, who highly approved of the plan and felt 

 assured it would answer. It is also exceedingly simple, which is at 

 all events a recommendation. The greenhouse is about seven yards 

 in length and nearly five wide. In the middle place a small oil 

 lamp on a stand, behind which place a tin concave reflector, twelve 

 inches in diameter. Let the lamp be lighted when the evenings are 

 likely to be too severe for the plants, and the heat generated with 

 the influence of the rays of light will be amply sufficient for the 

 purpose required. Should your correspondent wish further infor- 

 mation, if he will write me, I shall be happy to render him all the 

 assistance in my power. 



Higher Temple-street, Sept. 6, 1842. 



ARTICLE V. 



DESCRIPTIVE CATALOGUE OF TULIPS. 



I1Y MR. JOHN SLATER, FLORIST, OK PEACOCK HOUSE, CHAPEL I.ANE, CHKETIIAM 



1III.I., NEAR MANCHESTER. 



(Continued from page 199.) 



Lac. 

 Butler speaks of this variety as being one of the earliest varieties 

 cultivated, and also of its lasting only 10 or 12 days when in bloom. 

 I think he must have been mistaken, as I found the one I bloomed 

 to keep in almost as long as any other variety. The form is good, 

 and finely feathered, with a deep rose. So far Mr. Butler ; I agree 

 with him as to form, &c , but it has one great fault, that is, the 

 feather on the edge shows in some places two colours. It certainly 



