Transactions of the London Horticultural Society. 395 



In a note by the secretary, it is characterised as a " species of Pinus not 

 hitherto described," and named P. Lemonz'aVza. We consider it, judging from 

 the plant in the Horticultural Society's Garden, as a variety of the Pinaster ; 

 and in our Arboretum Britannmim we have named it Pinus Pinaster Lemoni- 

 dnus. An excellent figure is given in the Hort. Trans., from which omx figs. 

 49. and 50., are copied, and given in the Arhoretuw. 



62. Upon a new Method of applying Hot Water to heating Stoves. By Alex- 



ander Cruickshanks, Esq., C.M.H.S. Read May 20. 1834. 



It may be sufficient, with regard to this ingenious invention, to state that 

 the boiler is cylindrical, and placed horizontally, and that it includes a smaller 

 cylinder containing the fire. 



63. N'ote upon a handsome and [half-'] hardy Plant, called Clidnthus puniceus. 



By John Lindley, Ph. Dr., F.R.S., &c. Read December 2. 1834. 



This beautiful New Zealand shrub is now too well known to deserve de- 

 scription or recommendation. We have just seen some fine specimens of it 

 in the open air, in the garden of Park Cottage, Blackheath, the residence 

 of John Sheepshanks, Esq. ; and a fortnight ago, we saw a splendid specimen 

 covering a space, we should think, upwards of 12 ft. square, on the conserva- 

 tive wall at Chatsworth. 



64. A further Account of Experiments on the Cultivation of the Potato, made in 

 the Garden of the Horticultural Society, in the Year 1834. By John Lindley, 

 Ph. Dr., F.R.S., &c. Read January 30. 1834. 



The object of these experiments was, to repeat the comparison of whole 

 tubers and sets, and to illustrate the advantages and disadvantages of close 

 or distant cropping. The advantage of planting potatoes apart, and wider 

 and deeper than usual, is considered as being sufficiently proved by the former 

 experiments. (See p. 346.) 



The ground was divided into four equal parts. In one of these the rows 

 of potatoes were as much as 2^ ft. apart ; in another, 2 ft. ; in a third, Ia ft.; 

 and in the fourth, only 6 in. Half of each division was planted with whole 

 tubers, and half with sets cut to a single eye. The whole were committed to 

 the ground on the 27th of February, the tubers or sets being, in every case, 

 6 in. apart in the rows, and 9 in. deep. 



On the 24th of April the points of the potatoes had reached the surface of 

 the soil, and the next day about 3 in. of soil were drawn over them, for the 

 purpose of protecting them from ground frosts, which, in low and flat places 

 like the Society's Garden, are still prevalent at that time of the year. By 

 the 2d of May, the whole surface of the ground, in the division where the 

 rows were only 6 in. apart, was a mass of entangled stems. By the 20th 

 of the month, the stems in the division where the rows were IJft. apart, 

 had nearly covered the ground ; and, in a week after, those in the 2 ft. divi- 

 sion were in the same state ; but the ground was not covered during the 

 whole season, where the rows were 2| ft. apart. 



The shoots from the whole tubers were, in all cases, much stronger than 

 those from the single eyes, but they began to be prostrated in the 6 in. 

 division on the 29th of May, and the whole of them, in all the divisions, were 

 in the same state by the 27th of June; while the stems from the single eyes 

 continued erect till they began to turn yellow and wither, in the end of August. 

 This will, probably, account for the superiority of sets over whole tubers ; 

 could the crop be protected from winds, and the stems of the tubers be pre- 

 vented from breaking, I have no doubt that tubers would yield the largest 

 crop ; but their very vigour makes them brittle, and once broken, they are no 

 longer able to perform their functions perfectly. 



The greatest length to which the stems attained was 2 ft.; the principal part 

 of them attained that length, but many did not exceed li ft. ; and those in 



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