■ 



104 



THE GA R DENE RS CHR ONI CL E 



[February 17, 1912, 



EDITORIAL NOTICE. 



veiling numbers are rare. These numbers are 



ADVERTISEMENTS ahould be seat to the PUB- 

 LI5MER, 4i t Wellington Street, Covent Garden, 



W.C 



Local Newi. — Correspondents will greatly oblige by sending to 

 the Hddors early intelligence of local events likely to be of 

 interest to our readers, or of any matters which it is desirable 

 to bring under the notice of horticulturists. 



diseased plants and tubers, and also to 



advise the planting in allotments and else- related to one another in a definite way; each 



where of varieties of Potato which are number is the sum of the two preceding, follow- 



resistant to the disease. 

 It is satisfactory to le 



APPOINTMENTS FOR THE ENSOING WEEK. 



MONDAY, FEBRUARY 19— 



Nat. Cbrys. Soc. Executive Com. meet. 



TUESDAY, FEBRUARY 20- 



Roy. Hort. Soc. Corns, meet. (Lecture at 3 p.m. by 

 Mr. W. Cuthbertson on "New Sweet Peas.") Horti- 

 cultural Club Ann. Meet. 5.15 p.m., and Dinner 6 p.m. 

 N. of England Hort. Soc. meet, at Leeds. (Lecture by 

 Mr. Pulham, Junr., on "The R.H.S. Rock Garden.") 



WEDNESDAY, FEBRUARY 21- 

 Roy. Meteorological Soc. meet. 



THURSDAY, FEBRUARY 22— 



Manchester & N. of England Orchid Soc. and N. of 

 England Hort. Society's joint show at Manchester. 



Average Mean Tkmi'kkaturk for the ensuing week 

 deduced from observations during the last Fifty Years 



at Greenwich-39 6°. 



Actual Tempkkatukes:- 



London.— Wednesday i February 14 (6 p.m.): Max. 46°; 



Min. 42". 

 Gardeners 1 Chronicle Office, 

 Covent Garden, London 



41. Wellington Street, 

 Thursday, February 15 



(10 a.m.) : Bar. 29*4* ; Temp. 46°; Weather 



Dull. 



Provinces.— Wednesd.n , February 14: Max 49° Ireland, 



S.W.; Miu. 3U V Yorkshire. 



SALES FOR THE ENSUING WEEK. 



MONDAY and WEDNESDAY- 



Rose Trees, Fruit Trees, Perennial?, &c, at 12.30, 

 at Stevens's Auction Rooms, 38, King Street, Covent 

 Garden. 



MONDAY and FRIDAY— 



Hardy Bulbs, Herbaceous, and other Plants, at 12; 

 Roses and Fruit Trees, at 1.30; at 67 3c 68, Cheapside, 

 E.C., by Protheroe and Morris. 



WEDNESDAY— 



Perennials and Border Plants, Hardy Bulbs, &c, at 12; 



Roses and Fruit Trees, at 1.30; Palms and Plants, at 5 ; 



trade sale of Bulbs, &c, at 12; Japanese Liliums, 



at 2.30; at 67 & 68, Cheapside, E.C., by Protheroe & 

 Morris. 



FRIDAY— 



Orchids, at 12.45, at 67 & 63, Cheapside, E.C., by 

 Protheroe & Morris. 



that further 

 trials of immune varieties, which include 

 Langworthy, Conquest, and Golden Won- 

 der, Aberlady Early, Sutton's Discovery, 

 and others, show that they maintain in 

 large measure their resistant powers, and 

 that where they suffer at all, they suffer 

 but slightly from the disease. 



Having regard to the fact that no pro- 

 gress has been made in the devising of 

 retnedial measures, it is particularly im- 

 portant that a knowledge of what varie- 

 ties resist the disease should be dessimi- 

 nated as widely as possible. This the 

 Board is endeavouring to do, both by its 

 leaflets and by itinerent instructors. In 

 furtherance of this object we print below 



some of the results of trials made in 

 various districts. 



The lists of Potatos grown at the several 

 centres, namely, at Chorlton-cum-Hardy, 

 Blakeley Hill, and Peplow, do not all con- 

 tain the same varieties. We print, there- 

 fore, those varieties which proved to be 

 immune at all three place : 



Potatos immune to ware disease : 



Aberlady Early 

 Conquest 

 Dobbie's Laird 

 Golden Wonder 

 Langworthy 



Schoolmaster 



Snowdrop 

 Southern Queen 

 Sutton's Abundance 

 The Crofter 

 The Provost 

 White City. 



The results of trials at Holmes Chapel 

 showed the following to be immune 

 almost so : 



or 



The 



Distribution 



of Wart 

 Disease of 



Potatos, 



It 



fl 



:om 



Sutton's Discovery 



Golden Wonder 

 is satisfactory to learn Langworthy (very slightly attacked) 

 the Annual Report What's Wanted 



(1910-11) of the Intelligence 

 Division of the Board of 



In these trials certain of those found 

 immune in the Lancashire trials were at- 



Agriculture that wart dis- ta cked to a certain extent", namely : 



ease of Potatos has soread but little from A , , , ^ . 



the main centres of* infection, and that Aberlady Early The Crofter 



there are still large areas of the country £ no ^ dro P_ The Provost 



ing the so-called Fibonacci series, common to a 

 large number of plant structures. For instance 

 the study of phyllotaxis shows that, though 

 there is much variation, still, on the whole, the 

 Fibonacci series is followed. The same rule is fol- 

 lowed in Chrysanthemums for the numBer of 

 florets on each flower-head. No satisfactory ex- 

 planation has been suggested of the occurrence of 

 these favoured numbers, but the subject has been 

 well discussed by A. H. Church in his book on 

 Relation of Phyllotaxis to Mechanical Laws. 

 Very little is known about the inheritance of 

 meristic characters. It seems- probable that the 

 lower number is dominant over the higher. For 

 instance, in the Tomato, the variety with a two- 

 celled fruit is dominant over the four or five- 

 celled form, which suggests a limiting factor in 

 the two-celled variety." The representation of 

 organic repetition as mechanical in origin is also 

 an assistance when the inter-relation between a 

 series of repeated parts comes to be considered. 

 Their resemblance to each other, as that of the 

 hand to the foot, or that of the leaves of a tree 

 to each other, is then comparable with the like- 

 ness of waves in a series. That a series of such 

 parts, whether leaves, petals, segments of a 

 worm, or any similar structure can in variation 

 all change simultaneously in the same way, 

 ceases to be surprising. The lecturer proceeded 

 to give illustrations of the relationship subsist- 

 ing between members of such a series, and 

 pointed out that differentiation among such re- 

 peated parts is what variation is among brethren. 



Royal Horticultural Society. —The next 

 meeting of the Royal Horticultural Society will 

 take place on Tuesday in the Vincent Square 

 Hall, Westminster. In the afternoon a lecture 

 on " New Sweet Peas " will be delivered by 



Mr. W. Cuthbertson, J. P. 



Horticultural Club.— The annual general 

 meeting of the members of the Horticultural Club 

 wiH take place in the club room at the Hotel 

 Windsor, on Tuesday next, the 20th inst, at 

 5.15 p.m. The chair will be taken by the Presi- 

 dent, Sir John T. D. Llewelyn, Bart. The an- 



which are exempt from this pest. 



The infected areas are fairly well de- 

 fined, and the chief of these areas com- 

 prises the group of counties embraced 

 within a line drawn from Warwickshire in 

 the south, roughly parallel with the 

 eastern coast line to Cumberland in the 

 north. A second area lies in South Wales, 

 and a third in Scotland in and about the 

 counties of Stirlingshire, Fife and Kinross- 

 shire. The very active enquiries which the 

 officers of the Board of Agriculture have 

 pursued have led to the discovery of cer- 

 tain outlying infected areas. The chief of 

 these are in Durham, where the disease 

 makes its first appearance on the eastern 

 side of England ; in West Ham, in Hunt- 

 ingdonshire, Berkshire and Gloucester- 

 shire. The admirable maps which accom- 

 pany the Board's report enable the reader 

 to see at a glance the restricted and appa- 

 rently capricious distribution of the dis- 

 ease. Nor can it be doubted that the 

 energetic action of the Board has had dis- 

 tinct effect in arresting the spread of the 



wart disease. Special officers have been 

 employed to give effect to the Board's 



Southern Queen 

 Sutton's Abundance 



Whit 



nual dinner will take place at 6 p.m. on the same 

 date, at the Hotel Windsor. Sir Frank Crisp 

 will preside. After dinner the proceedings will 

 be interspersed with a musical programme kindly 

 provided by Sir Frank Crisp. Members in- 

 tending to be present are asked to write to the 



hon. secretary, Mr. R. Hooper Pearson, without 

 delay. Ladies are specially invited. 



Mr. E. H. Wilson. -At a meeting of the 

 Board of Trustees of the Massachusetts Horti- 

 cultural Society, held on January 13, it w* 

 decided to award the Society's Gold Medal to 



Professor Bateson on Genetics. — In 



comparing the patterns formed by the living-or- 

 ganism, with those produced by mechanical 

 agencies, it must be remembered that, generally, 



in the former, pattern arises as the result of „ 



periodicity of growth. Sometimes pattern in the Mr. E. H. Wilson in recognition of his work a* 

 organism may be formed by differentiation of pre- a plant collector in Western China, 

 formed material, and in this case it is very com- 

 parable with mechanically-produced repetitions. 

 But, generally speaking, organic repetitions are 

 due to a continuous series of divisions. There is 

 no direct analogy for this to be found in any 

 vibratory repetitions, but some curiously close 

 parallels exist in the periodic heterogeneity which 

 occurs in osmotic growths developing in colloid 

 solutions, especially those recently described by 

 Leduc: "A* illustrating stability which is al- 

 most certainly mechanical, the work of F. 

 Ludwig is of great significance. He made large 

 counts of the numbers of flowers of Cowslip um- 

 bels. It might seem improbable that these num- 

 bers should show any regularity, but, working on 

 a large scale, Ludwig found that certain num- 

 bers, and their simple multiples, are common, 

 and others rare. He found that the most fre- 



The Surveyors- Institution. -The next 

 ordinary general meeting, being the second o 

 the two afternoon meetings arranged for the 

 convenience of country members, w T ill be held 

 the Lecture Hall of the Institution on Monday, 

 February 26, when a paper will be read by Mr. 

 Lislie S. Wood, entitled "The Tendency 

 Towards Uniformity in Compensation for Agri- 

 cultural Improvements." The chair will be 

 taken at 5 p.m. 



L.C.C. Parks Employees. -In November 

 last the London County Council approved » 

 scheme for the classification and promotion o 

 boy labourers and improvers in the parks 

 partment. Certain arrangements have still to 

 made in connection with the proposed scl J eI f^ 

 but it is intended that the new scheme shall 



regulations for securing the destruction of quent numbers are 5, 8, 10 and 13. The inter- come operative at the beginning of next April 



