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THE GARDENERS 9 CHRONICLE. 



[April 13, 1912. 



Royal International Horticultural 



Exhibition. — In fig. 108 we reproduce the 

 design of the Diploma of Honour to be awarded 

 to exhibitors and others at this exhibition. 



The cup illustrated in fig. 109 has been 



presented through the local secretary, Mr. 

 Thomas Humphreys, by subscribers in Warwick- 

 shire for award at the International Exhibition. 



National Horticultural Society of 



France. — The annual list of tie members of 

 this French society embraces no fewer than 240 

 pages. It contains a report of the annual meet- 

 ing of the society and the council's report for 

 1911, also lists of the committees, names of the 

 members in the various grades, corresponding 



Pond-weed and Copper Sulphate. — Inth 

 current issue of the Kew Bulletin Mr. W J 

 Bean gives particulars of the destruction of alg* 

 or " weed " in ponds in Kew Gardens by the use 

 of copper sulphate. Owing to the water of the 

 lake at Kew being pumped for garden purposes 

 (including the watering of Ferns and other low 



The design of the cup is in the Queen Anne of members according to the departments, 

 period, and the arms of the county are inscribed 

 on one side. 



Messrs. Sutton & Sons' Cup (see 



societies at home and abroad, and a classification types of vegetation) it is considered inadvisable 



fig. 110) will be awarded for the most meritorious 

 exhibit of vegetables in classes 394, 395, 396 and 

 397, reserved for market gardeners and amateurs. 



The Tomato Industry in Ontario. — The 



popularity of the Tomato knows no limit, and 

 its cultivation is increasing enormously not only 

 in the United States but also in Canada. Thus, 



to use copper sulphate there, but it is employed 

 with advantage in the smaller ponds. The pro- 

 portion used is 1 part copper sulphate to any- 

 where from 750.000 to 1,000,000 parts of water. 

 It is first necessary to ascertain, approximately at 

 least, the cubic contents of the 



in the State of Ontario the area under Tomatos, treated, 

 which was 800 acres in 1891, increased ten-fold 



American Association of Park Superin- 



tendents. 



members of 



in eight years, and the number of bushels of 



fruit paid for by the canning factories increased 

 The next annual meeting of the ♦ th flame ti f 132 qoo to 1,400,000. The 



this association will be held on 



August 12, 13 and 14, at Boston, with Copley 

 Square Hotel as headquarters. The proceedings 

 will include an inspection of the Boston Park 

 System, visits to Arnold Arboretum, country 

 estates in Brookline, Newton and Wellesley, 

 Middlesex Falls, Revere Beach Boulevard and 



Among the sub- 



7< Park 



growers received for the former crop $26,000 and 

 for the latter $386,000. That the crop is profit- 

 able is indicated by the table of cost of produc- 

 tion, published in Bulletin 196 (on Tomatos) of 

 the Ontario Department of Agriculture. The 



water to b« 

 The sulphate of copper should be ob- 

 tained in a pulverised state, placed in a porous 

 bag, and dragged through the water until dis- 

 solved. It does not matter how the sulphate is 

 distributed so long as it is done thoroughly. It 

 may be dissolved previously and sprayed evenly 

 over the surface, provided no Water Lilies or 

 other aquatic phanerogams are in growth. It may 

 be mentioned that a cubic foot of water weighs 



about 62Ji 



lbs. During the last two summers a 



Accounts, 



»> 



North Shore drive to Beverly. 



jects for discussion at the meeting will be 



" The Influence of Parkway Con- 

 struction on Property Values," " Chinese and 

 Siberian Plants," " Botanical Nomenclature, 

 " Street Trees," " Roads," and " Organisation 

 of Park Boards." 



>» 



Women's Agricultural & Horticultural 

 International Union. — The fourth annual 

 dinner of the members and friends of the Women's 

 Agricultural and Horticultural International 

 Union will take place at the Imperial Restaurant, 

 Regent Street, on the 30th inst. The speakers 

 include Miss W. Brenchley, D.Sc, on " Agri- 

 cultural Experiments;" Mr. Christopher 



Turnor on 



M Agricultural Education ; 



»> 



Mrs. 



Fitzgibbon (British Columbia) on M Opportu- 

 nities for Trained Women there and in Van- 

 couver;" Mr. Edward Brown, N.P.O., on 

 M Poultry Industries in our Colonies;" Miss J. S. 

 Turner on " The Work of the Union," and Mr. 

 Chittenden, on u Horticultural Education." 

 The secretary is Mks Ella Gill, 45 (sixth floor), 

 Queen Anne's Chambers, London. 



The Poplar in Italy. — Wood pulp made from 

 the common Poplar is excellent for the manu- 

 facture of paper, being white, soft, and free from 

 resinous substances. In Italy, where the timber 

 is used for a variety of purposes, it is considered 

 that by the afforestation of waste and unproduc- 



iriG. 106, 



KUYAL international horticultural exhibition. 



DESIGN FOR DIPLOMA (REDUCED). 



pended might be obtained by the manufacture 

 of pulp from Poplar trees. 



Journal of the 



According to the 



A rts 



and the cost of production $67.50, leaving a mar- 

 gin of profit of $42.50. On the other hand it is 

 found that a considerable element of risk attaches 

 to the crop which is notoriously dependent on 

 seasonal conditions. Thus, it is found that 



tiw lands, ^a good^ return for the capital ex- pr i ce of the crop per acre is estimated at $110, striking example of the effective use of copper 



sulphate has been provided in St. James s rar 

 Previously, it had been a costly and troublesome 

 matter to keep the water there presentable in 

 hot weather by employing men in boats to remote 

 the weed with rakes, &c. The copper sulphate 

 treatment was adopted, with the result, we learn, 

 that at a much less expenditure in money an 

 labour it can now be kept practically free from 

 weed. A fact of considerable interest bafi a ^ 

 been reported by the Superintendent. The pon ~ 

 are cleaned out triennially and the surplus - 

 disposed of. In recent years it has been foun 

 that many of the fish were badly atta ^ ke f f \ 

 fungus, so much so that it became *> uDt 



Royal Society of Arts a 

 systematic cultivation of this tree, on the best 

 lines of forestry practice, is being strongly urged 



by many of the principal local agricultural whereas in favourable conditions the Tomato 



develops from seed to ripe fruit stage in 85-120 

 days, in cloudy weather and with low tempera- 

 Most of the 



societies. In consequence of the high price of 

 wood-pulp in Italy, and in order to render them 

 selves independent to some extent of foreign 

 supply, a few of the leading firms have set an 

 example by establishing their own plantations. 

 The results of their experiments have been most Jewel, 

 satisfactory. In one case a return of 15 per 

 cent, on the outlay is said to have been obtained. 



tures it takes from 150-175 days. 



seed used in Canada is imported from America. 



The varieties used are Erlianna and Chalk's 



WOR 



Consumption of Super- 



A leading firm of paper makers, with works nc-ar phosphates. -According to the estimate of Mr. whether it wa* advisable to transfer them « 

 Milan, a few years ago established important Stahl (Bull, de la Soc. d'Encouragement pour other waters. We learn that at the last cleans- 



where 



being subject to floods, and 



with 



plantations of Poplars in Uu> valley of the Ticino, r Industrie Nat., 115) the world uses annually 



about ten million tons of superphosphates. Of 



stony and gravelly soil, the land is of little value the phosphates required for the production of 



for agricultural purposes. Several thousand trees this amount of superphosphates, 500,000 tons 



are planted here every year, and in the course are supplied by France and Belgium, over two 



of a few years these plantations, it is expected, million tons by North America, upwards of 1£ 



will furnish an abundant supply of raw material million tons by Algeria and Tunis, and 800.000 



for paper making. 



tons by Australasia and other countries. 



out the fish were quite free from fun S^j[. * ^| 

 and remarkably clean and silvery. 1 1S .^ 

 especial interest, because one of the ^ 

 matters about the use of copper sulphate m * ^ 

 wafi its effect on fish. It has been foun ^ 

 America that certain delicate species ^ 

 affected, but usuallv when a considerably Btr 

 application was used than that nwntione . 





