902 ` THR GARDEN BRS CHRON (OUR 
woe eS ee acer E 
Journal of the Paris Horticultural Society, Mons, ral ar - B Tk; 185g; i 
Viurry some months ago read a paper in whieh | w au nouvem i 
he endeavoured to show that although black fine: Diovi hey come or r E | 
walls produce, no advantage, yet tha eated P At Belleisl d in Franche Tee] 4 
WHITENED walls must be useful. ‘‘ There|Comté the sum of heat acti pa daily by the} __ ort, ee | 
is a general opinion among writers of authority on | thermometer is much the y the end of the ; icone eae Kia, 
arboriculture that Vines and stone fruits which | year; the Fig trees b p- 3 pas largon ; 7 ae 
require a high temperature gain by being trained | first of these peee ; but t they fee every yea 7 | pia aha 4 le 
ver a black wall, while on the other hand kernel | Besancon in Franche Comté. On the other ome ; alt Zz 
fruits whieh Pidike pene succeed best in front of a| Franche roe ie dl wine, but the gag p Bad ait Mast ai ig 
white wall; and this because a black wall absorbs | Vine never ripens at Belleisle. ( Besangon 3 Dee esse di ie Eii i 
the calorific rays o f the sun, while a white i canan Comté, on the east of Fr pes is Bite tae a ae 
reflects them. That is perfectly true, but it are the same latitude i Belleisle, an island Ha i 
H ad the whole of K “a 
ne follow that trees. are gainers in either ca its western coast.) ‘ When the earth = enue enama, Pear 
for it is one thing to be in absolute contact with a a|with a little powdered charcoal, or with a dark weg ae si have had 3800 Pet 
wall, and another. to be placed, like the|coloured matting, peat earth, or dark biden leaf- Pow rn : 
ure of wall trees, some inches off. “If,” pro- | mould, the ripening of fruit has been ‘aviine ed grating ‘Ge we er sintes that the effect of on 
eeds M. Vrurry, ‘a white wall becomes less | from 15 to 20 days, which is enormous. This fact éouss pplicatio, des boutons Spur 
e 
hea ac 
Consequently, the eer of air nearest the white | are laid upon snow; t elast aa ge scarcely uy tho 4 oj sii i r C aay nena 375 
sa s on the suns po th 
the reflected rays becomes hotter than if the wall | the other soon causes the snow to melt, p quickly perated on 
were black ; and it is precisely in this layer of air | sinks below its original level. We cannot but as wih ara French correspondent 
t the wall that the g trees is carried | thi na ite | topie information upon this i 
om; hence it is an inevitable inference that white | and black walls. any rate we cannot — abi it ene 
walls augment. the heat to which trees are ex- the question is tr open to further examin We have just received Signor 
sed, while a black wall diminishes it.” Doubt- | tio of the waw Pusto canbe Bet 
ess, he adds, you may say that the black wall Herë rests the matter for the present, We quite | to form AT CATAN. Next wee 
raises. the night temperature by slowly parting | agree with “M. V.” that the question is 9 er vour to alee his design, A which tf 
with the heat which is absorbed during the day. being solved, and we may na ni revert a ji possess great mer eare 
is i i n e i to be fon oun 
But this is a mistake, for a as the s m mE 
rays are withdrawn the cfr what between the | our columns for 1842, the Bon Jardinier, Maor- SIR W. J. a LAST OFFICIAL nam 
i = e -Ahe pa , and | INTOSH’s "Book of the Garden, and elsewher or vaca 
ep of = vaii g - ai m arface is SSS SS ia inu Ir is now univ ~~ 
restored ; if there be yi s i ier eration of tempe-| Some curiosity has been excited by our report | the e public have been admitte ted, throught 
rature in front of the only momentary. upon the Paris oe gee mae on e page 764), from 1 o'clock till dusk, bptyre li of the Bota 
In support ese ca of, Torey relates | in which it is mentioned t “the finest Pears Garden of Kew, in cluding all t tho planta D 
ce : 
E s 
April 24 ; before mrin after’ sun- | p and i 
set, at different hours o of the day, when ii oan | misinformed, geingt re Rion sees yee 7 eres ‘and sone £, daring the 
when tis fa zan Nies oxarodat, and consequently | in question undescribed, alas take the Pgs s of pressa vm he Firs 
a bas PAA be Ge, wer ene The follow- at approaches it most A is the not Commissioners 
* he result. B but far from unknown, practi iol grat wh which exists in out grecoboun daca 
but danas a slight difference in fave arena in eicopens my ty bran felt, but whi paa — 
hite Y; aig th rence in favour of the |a tree covered speedily with bearing kes “of this) Korun by year, po Pe it now e great an 
white screen, e ay time it was different : pl Trentham by Mr. WREN ing the of est 2 of these > unreal 
© between 9 a, . and | to one of the late meetings of the oe Committee} The my includ 
ult ; Ward : 
ferred. that.‘ walls should be whi tened when it is ie pis ree a ro a ae ex T na ‘or a | Lowering: shrubs have 
highest possible temperature,” &c. die. | iriga 
; b. apah raion paris oF 
writer signing himself“ M, V.”, who egards uch contrivance for securing imm ieee pres the different beings i Tae ib 
experiments as being wholly thoohaluliie:: «Thess fertility in Pears seems to be growing in favour | accession of new and rare: p fro een: 
is no resemblance between the action of the solar among the Fren ch, who Spe eak in their gardening — ots and Ee estab 
rays on paper screens, kag on walls of masonry 6 or w nts, bo 
8 inches thick. Stone has agreat capacity for heat; on Greffe mixte; very suitable ‘or the operation. general | keep of the plan due 
that is to say, it will receive a great dose, Ser it | Ac ccording to that ‘writer ib i performe _thus. to maint ntain a more efficient 
one, by way of trial, place his hand on any parapet | when the mee have near] oar ing, s a 
between 10 and 11 o’clock at night after a fine | or branches to be used as iy done re pare d tise i rope 
warm day, and he wi sensible of a very un- | thin as possible’ at the base, so @ the 
mistakeable warmth. Would this be so if he put | greater part of the wood. The ma or branch to 
h of pasteboard ? Certainly | be grafted is then cut through in the yeo a- P| extensio 
soon bring i e , the sides o he T are | 
up with the flat ha rae ofi te budin ng 
ach nothi in 
at M. Viver sa pera about the temperature of | so as to bring the inside of its rear ja wins aan 
the air resting on white and black wa 3 fr at it young eg i de aga contact with the 
ur] 2 io secure 
ff soas o- Na S trees and shrouds We 
` me | stalks remaining. This kind of grafting is pro- | to the recanti £ our large trees celebrated © 
the air around them, and thus perly ca “mixed,” beeause in faot ib is i half will not bear frost, es ae vr 
e to the formation of dew on the surface of budding an lection of Pines, Ara ‘Already they have suffered 
cates Whether this is advantageous or not,| An interesting ee t oP the oe results -i bo os J ees aut yee ce ; many have perisheds a 
~ + eaves others todetermine. Suppose,how- | some similar fais ss for r grafting youn | tremely fo es : Sood <i, being shorn, every: mee t 
on he adds, that we admit white walls to give | with fruit to. be found i ig ig April the deformed a d eripp and stately nen tad 
t more heat than black ones, which is not by | pume of the Jor rinkai om the Paris Horticultural bri fe! hm under the shelter of a dark a hovel of ® 
pe Aperan nit age do we not know that for Banat Society in the form of ar port by M. PE ata = E sp Sai » only 23 feet bi high, or 3 
feel hee Aa that they may form their! the garden of a Airie Kini named Bov 8, [Ling 4 ago condem nel gf them, The 
oe. and fruit cm rfectly, a ed living at Perray, fn this is place, by grafting Peat few nw and qu e unsuita oa long 
ne on mature comet fruit, that the | trees on male with fruit buds, or better ce me tjn ee ervatory ‘reenhouse, which 
: temperatu ould os distri spurs, the following were obtained on ase] Dae vey ‘old. aià decayed. 
$ 
