i379-] HEATING BY HOT WATER. 369 



CUCUMBER SIR GARNET WOLSELEY. 

 Me James Hamilton of Carlisle has long been celebrated for Cucum- 

 ber growing, but more particularly for carefully hybridising and 

 raising line varieties. He is this year growing very extensively a 

 variety which is the result of a cross from Deans' Prolific fertilised 

 with the Duke of Connaught. It is the most handsome Cucumber 

 we have ever seen, and is of excellent flavour. It grows to an 

 average length of 18 inches, is entirely destitute of shank or shoulder, 

 is smooth and even in its growth. As a rule, it produces three fruits 

 to every joint, which swell rapidly to maturity in succession. Taken 

 as a whole, we consider this the best Cucumber we have ever met 

 with, and predict that it must become a great favourite of Cucumber 

 growers. 



HEATING BY HOT WATER. 



In reference to " C. M.'s " last paper on the above subject, I have to re- 

 mark in the first place that if it had not been for the two last sentences 

 in it, I would not have taken any notice of the others. The sentences 

 referred to imply that his object in continuing the discussion is to 

 elicit truth. Now, when writing the paper that has led to the present 

 discussion on heating by hot water, my object was to put before the 

 readers of ' The Gardener,' in as plain and short a manner as I possibly 

 could, what I knew to be the truth on the subject with which I was 

 dealing. " C. M.," however, thought right to dispute my conclusions, 

 and not in a style that would lead one to suppose his object was to 

 bring out the truth of the matter, but in a way calculated to induce 

 those who have not given much thought to this particular subject to 

 suppose that my statements were wrong, and that he knew them to 

 be so. 



When reading " C. M.'s " paper in the April issue of ' The Gardener,' 

 in opposition to mine in that of February, it struck me that he had not 

 given the subject with which he was dealing much thought, and his 

 last paper strengthens that belief. If " C. M." had got any great 

 length in his studies on heating by hot water, he would know, and 

 therefore believe, that opposing currents of hotter and colder water 

 take place, without equalising, in the flow-pipes when they are laid on 

 a continuous rise from the top of the boiler to their furthest points of 

 extension in the compartments to be heated. I note that in his last 

 paper he says, " mixing and equalising to a certain extent at the com- 

 mencement of circulation ; " and this qualification of his ideas on this 

 particular point, as put forth in his first paper, is an evidence that he 

 is making progress in the right direction ; and I have no doubt in due 

 time he will get on the " right tack," and throw the equalised, mixed, 



