NOVEMBEB 30, 1912. 



THE GARDENERS' MAGAZINE 



913 



tioii of early potatoes, Ireland conipares 

 favourably with Great Britain. Different 

 types of potatoes have to be grown for the 

 English and Glasgow markets, a kidney- 

 shaped tuber, like the Ninety-fold, being 

 preferred in England, and a round potato 

 in Scotland. 



Town Planning at Croydon.— 



A broad stretch of fine open country lies 

 between Waddon Hill and Russell Hill, in 

 the Borough of Croydon, and . a scheme of 

 town planning somewhat on garden city 

 lines is to be prepared for dealing with this 

 area of about six hundred acres. 



In 



Albino Form 

 obertianum.- 



from the R.H.S 



Eric M. 



of Ge 



'anium 



reply to an en- 

 Scientific Com- 



58, High 

 ' ' With re- 



quiry 



mittee, Mr. Eric M. Luckin, 

 Street, Feltham, has written: 

 ference to the enquiry as to wild albino 

 forms of Geranium liobextianum . some four 

 years ago I discovered a plant growing in 

 a meadow bearing albino flowers, stems 

 green. The two years foUowino^ I revisited 

 the spot and found the plant, but this year 

 I failed to locate it, and fear it has been 

 destroyed. The meadow is near Haywards 

 Heath. Sussex 



Larch 



aw 



-In view of the in- 



jury that has been done by the larch saw- 

 fly in plantations in various parts of the 

 country, it cannot be too widely known 

 that an important bulletin on this pest 

 has been published by the Canadian De- 

 partment of AgricultTU-e, Ottawa. It was 

 written by Dr. C. Gordon Hewitt, and con- 

 tains the results of investigations made by 

 the author in England and in Canada. Dr. 

 Hewitt holds the opinion that the pest can 

 be controlled in the British Isles by its 

 natural enemies, and the chapter on com- 

 bating the sawfly by cultivating its para- 

 sitic enemies is worthv of consideraton. A 

 description is given of experiments in sub- 

 duing the pest in this way, and, although 

 £„ I • eding 



been effect 

 fairly 



Wales. Among remedial measures 



scribed ^ ^ ^ 

 ite of copper in the proportion of lib. to 

 130 gallons of water, Paris green in the 

 proportion of ^ib. to 40 gallons of water, 

 or lead arsenate in the proportion of 21b. 

 to 40 gallons of water ; destruction ^ of 

 oQcoons; hand picking and crushing; jar- 

 ring of trees, and tar branding. 



Potato 



t North America, it was 

 successful in Cumberland and in 



remedial 



de- 



Culture 



Wal 



in Engriand 



From a preliminary state- 

 ment issued by the Board of Agriculture Ave 

 gather that the acreage luidor potatoes in 

 England in 1912 was 436,948, and in Wales 

 25,955. 



The estimated production for the 

 year is 2,113,409 tons in England, and 

 130,237 toTiR in AVnlPs. or a total 



of 



in 



tons in AVales, or a 

 2,243,646 tons. The yield works out at 

 about 4.85 tons per acre, and is the lowest 

 since the returns were first made in 1884. 

 The lowest previous tonnage per acre was 

 4.97, in 1900. 



Glacial Flora 

 Duchy of 



of 



Baden.— 



the Grand 



— F'or some years 

 past Dr. P. Stark has Ix^en engaged in the 

 investigation of the glacial flora of the 

 Grand Duchy of Baden, and the report on 

 the results shows that the work accom- 

 plished was remarkable for its thop 

 ness. The report deals with both 

 flowering plants and mosses; and not only 

 are such remains as stems and leaves de- 

 scribed, but such matters as pollen spores 

 and fragments of the epidermis. Contain- 

 ing much information on Alpine, Arctic, 

 and moorlan<l 



the 



vegetation during 



and post-i:;larial times, the 

 nnich iiiter(^st 



glacial 

 ^ of 



report is 

 ecological stand- 



. - The author evinces much caution 



with reference to inferring great changes 

 of climate from the succession of plant 



point 



remains in the glacial and interglacial peat 

 deposits, and directs attention to the im- 

 portance of taking into account ecological 

 conditions other than variations in tem- 

 perature. 



Eradication of Moss from 



Grass Land.— During the past ten 

 years a series of experiments have been 

 conducted by the Cornwall County Council 

 for the purpose of determining the method 

 by which moss in pastures can be the most 

 effectually eradicated. The four plots set 



phate. On Plots 1 and 4 the moss turned 

 brown in from a week to ten days after 

 the application of the manures, while on 

 Plot 2 no appreciable effect could be ob- 

 served until late in the. autumn of the 

 second year. In the case of Plot 2 the 

 acid of the superphosphate had been neu- 

 tralised bv the bone meal. Close observa- 

 tion has shown on several occasions that on 

 Plot 1 the acidity so affects the carpet of 

 moss, M'hich has often stoo<^l from 2 to 3in. 

 high on the poor pasture upon which the 



CYPRIPEDIUM EliATIOE. 



lip, and a white, purple- 

 Menteith Ogilvie, Esq 



(o-ardener Mr. Balniforth). The Shrubbery. Oxford. (See P- 916.) 



\ very effective hybrid, with yellowish-green sepals, petals and 

 ^ marked dorsal sepal. F.C.C.. R.H.S,. Xovember 19. F 



apart for the purposes of the trial were 

 manured as follows, the quantities of the 

 fertilisers used being calculated at 

 acre: Plot 1.— -6 cwt. superphosphate 

 6 cwt. fine bone meal, applied separ; 

 Plot 2. 



per 



experiments have been conducted, that the 

 manure soon reaches the soil below, and 

 takes effec^t. On Plot 2^ on the other hand, 

 the manure, which may be seen lying upon 

 the carne+, of moss months after it has 



cwt. superphosphate and 6 cwt. 

 fine bone meal, applied at the same time as 

 the manures on Plot 1, but mixed three 

 months before. Plot 3.-6 cwt, basic super- 



carpet or moss 

 been applied, is powerless to either injure 

 the moss or t-o reach the soil l>elow. The 

 result-s of the trial should l>e of mucTi in- 



moss\ 



phosphat-e. Plot 4. 



OS- their care. 



V 



