THE GARDENERS CHRONICLE. 683 
HORTICULTURAL SOCIETY OF LOND 
on. is uaiaiy given, that t only one = Meeting of this 
N'se pase 2 yay a ay i Eye 
d Jan’ 
cations, is strictly true. It may be practised upon aii | explosions when one or oth these s 
kinds of fruit-trees with the best effect; and we shall | suddenly increased nel posing the doors Tide ~— ae 
| . and, Dec. 7h, ona pe ; which proves; fi imagine, con- 
| Jan. ig | particular instances of it. It is the only method of | clusively 
| _ii, Regent Street, Aug. 13th, 1841- piel dey me that should be recommend to the bos | furnaces d dopa oe deficient supply of oxygen, 
| . in tager a" ibl oe heen proba on insaficient temperature. 
rheiner prada f produce in a given space of ground. In|. Tnott’s stoves it is further certain that the 
Tie Ga £ ers wes “pronicle. proof of this we would only advert to ~ garden of | imperfect combustion which precedes and produces the 
| LT ; Mr. Henry Crace, at St. John’s eer ete here pene * | explosions is due to the limitation imposed on the supply 
SATURDAY, OCTOBER 16, 1841. vilest of all soil, the London ight in 6 ay by =< valve he Be by oe itself, because 
enever the val 
MEETINGS IN THE BNSUING WeeR. acre of ground are walled in, the Oodce : he fore | perfect and so st id: a nyt es ar ee ise 
eck somewhat similar to the valve of 
ines a a single season from the walls, | these stoves is sometimes teplied nd the ash-pits of boiler- 
| Piieedby Floricultural . Pat, may bean ge of by the fact that 320 dozen Peaches | with the fuel. 
h 
ems 
Roor-Prunine is a subje . to which we often had ich are low onl 
78 nly occupied with frdit-tives “4 furnaces, which, however, do not Atially require it, 
oecasion to advert in the early part of the year. Now anes slides of he aaa gle. The trees there a “the cana of tem: 
anette the > He for such o that wil is salve curtis We | crow ded together as in the nurseries ; they are covered eae P 
that 10 0 
ensuing eililt £ the attention i with fruiting s d foe all these considerations, borne out by experimen 
It is a oat te ii ~ the es no the héid ofa Which pe ih rip Sen Sll ese A DP : retain my — that the usual defect of boiler. “ 
tree corresponds with that o : that, in fact, Tt; isn t z aces is deficient temperature, and that this defect is to 
one balancesand equals t oak as le adieitnane = - sails beast ne 4 be poke bef study anes Sea, Oe prasgetiny securing good 
Ey “age ue combustion, the t 
sm 5 pes - Parag Fs = jonpig ae sean practi om ‘ith respect te many ofnamen el the h eat to the bole n arranging for the transmission of 
id the poet ; and although this is by sel me, able er bs i uch as within sa plants ‘which i aot des , I should eg to re- 
ye : is As guficiently so for a motto to a chapter o : le een ch within small com pass, and € ven large commend that the fuel be _coneaine mee» ntact with 
n e roots of hea are large pee my ‘ inly not in contact 
numerous ‘he he head must. be 80 > too, fix “this” plain where object. But to these points we shall | with the ie iler. Those portions of fresh coal which lie 
p rdbably 1 ehirit herdunbc. against th 
t nea pass: t | i Pee 
pe Fe teepcriiet bethaderied werent a of ila pais wu! | ON THE PRODUCHION, DISTRIBUTION, AND than combustion 5 and while they are thus ting, th y 
that — ow ~ eae in the formation ¥ branches.| PRESERVATION OF HEAT, WITH REFER. portion of the f 
0 interference with such a law as this ENCE PARTICULARLY TO THE IMITATION | descence. The whe ta 
3 phenomenon ‘of a heap of coal “nih ; th hot 
Suppose one tree roe tbs . Ibs. = Ln be (or sap), OF CLIMATE, IN CONSERVATORIES. No . VII. ae and cool exterior is familiar in mt case of 
o t i 
and the other 40 by the roo “citcum 
being equal, it is evident ther tie on will have oo to tate an of boiler-setting proposed in a previous f le within a boil ded 
much organisable matter a s the other - ; and, ber, and having, myself, in the mean time h furnace. 
as su atter cann d back into the soil, Homa Perepss for believing” that the Plan is set, rT. am It should be remarked that there is nothing new in the 
bop ae % Of fetutne he 
t is irresistibly driven upwards by the force of v g be a 
getation, it ean only be e ze anit rg the ot uiiention |? nts a irrespective of Horticultural views. ‘The state of trary, a very large number of furnaces have at all times 
nd eo 
Foadet -bridge at certain hours of the day, and in certain | been so constructed, although they have been always 
a branches i Real an Pata aes ee e leaves directions oft the wind, is sufficient of itself to excite the | i mr rs : anott sp b iced. T-have 
inidhet-entienec as in th wa OF most lively interest in the question, and to demand for 2] 4 iz OP 
this is equally tre, — course ‘the every honest attempt ‘toi improve the present practice the a5 1 close to the boiler, which is, I 
F utmost indulgence an injurious , practice 
sme a adverted to in the Peg of Horti- | ance produced by ‘the congregation ‘of steam-boats in this | | The defect which I sapor oS _— existed in all brick- 
#1 (p. 262) in the following words: art of the river that suggested t of Mr. Watt to the pre- 
¢ must now be obvious that, altho Si root-prun- their invitation for admitted de- , 
ing may be prejudicial in transplanting trees, it may | fects of the existing bale but it t does aot appear that ead purpos paheltg out the radiant tin from many parts 
be of ¢ @ greatest service to such established trees as they i — satisfactory ans ‘0 which it would apply even at the oo distance 
jf ted ead aor and leaves, instead | . Tt is tru a haps, t that t the quantity “of soot thrown coutlts in g y plan, which 
oe ruit. < i é : nee 
vigour is at gene stop is peti — aie cae other boiler-fi d render the metropolis un- bl fi 
stronger roots, and con tly of = es h os ig but it I it in- the boiler cat. are on ps smoke r gases, except the 
t tous food ‘to to which thet rauiness 9 part ben t e sw dicates 2 certain waste of fuel, and it probably causes hh r side, which ——— re aes tal ‘h 
propo sition, whether it be goo jad, has more 
nd beauty of growin Bae in addition {o the | novelty than the former, 
trees at yon ‘on, by Mr. Errington, one oe our — saad thrown int 4 oe < hew very y large portion is detained ay boiler, or any design for one, in which this idea 
esi gardeners, and by — others, and I believe | in the flues surroundin there- | involved: — It may be stated, I think, on an-average, 
eres hever proved an objectionab fe prdctive-itider judi- | fore, frequent “aitatitto® th Feindv: fees, accumulations ; beck “built boller-h have not acted directly, that 
pee ty of feod, nat toh effect is, prot tanto, tocu ut off the and the coating so formed on such parts of the boilers i Sagi te eye meth sgt rape 
+ and thus might have been presented to them by sigh 
thr branes and the connexion between this and | of that heat whichi the flues are intended to impart. In lowering the fires and a abandoning the circuitous a, In 
the production of f; bes ci 1 ee point of view, therefore, t Watt's a at oa Albion M 
(85). It it is by pala he 4,3 “explained consequence, and 1 am glad of the opportunity afforded | prop tainly less th twelfth. The ob- 
that ihe Me root-prunin ig to excess rs 6 reader to 16 jection ors to my plan by toe: od correspondent before 
ite so much curiosity in Eur ong other obje ction to my plan, it is stated that 1 eaistnaped fe ‘founded | on the greater distance at which I 
It is one of the most co v4 oni dee ** smoke a combustible per se,’’ which is the rai 
me} ‘ost common of all things to find pes I think, to as inferred from my observations ; and to diffuse itself over a wider space, which he consitlers | to 
ms —s hee eet of flowers although farther, ' — fhe defect of bese furnaces is s hot, as I ied pas seca radiant heat diminishes as the square of 
“it is-very strance.” t sup: 
ct ge,” says the gardener, “that I oly we onygel This last is a an ae open 5 space it is quite true that a given surface would 
poser from those finely-grown heal trees!” & it has given rise to ftiany schemes for seredeciig fresh | at doul Zi 
ire 1 be more ia vs 3 ya At ‘ak Bye air to the smoke and ¢ y ri th g from any point, and we can easily sl be the course 
wie are n as | fel in eg! 8 secure their combustion. Loe of these . Bat 
i nan a red f: ave, I believé, been found to answer the purpose, 
both cases it shows face an cones ns ‘man in for this simple teaso abit as I on inetined to think, reat the sould by no means : ee the same. consequences. 
More than he ought, and short common st it nevertheless, the | moreover, while the distance is doubled, the saninkae? 
lent remedy in eee case ell s the othe aa I fullest investigation, becatise “2 fas "grolably diverted at- | surface bé increased sixfold, it is clear that a considerable 
plants there j as ‘well as: the other. . £0 | tention from the real defects of boiler- -farnaces, and has | gain may be secured, and this is é ° : of 
€ 18,no mode 
ry ied monger of a ey the question whether excessive heat.upon 4 — surface 
the so y crippling t roots ; | for wi ES Temay b lected that d Ferg semepmgL yrs. ialagous to 
atmosphere and its action on th 10 have had thie a ole 7 shown by th tion of water in the red-hot 
We cannot ir. A ie Iti mK ied tha lent is susceptible of ar 
is therefor € 0 espe pp ter use capsule. aa enied t t thisexperin is suscepti! any 
It ‘dite hte mode 0: < opera the open ash- re was a bs, 5 da 108 clare a pice ; pci o boiler —, “os at amas sued 
Matter posgre at what iod of th practice to use but all porti are neve 0 ; 
winter this peri ae “ A 3 +} hich has been alluded to. 
operation formed t: 
* between the fall ed ‘ é th: oes is a i hich d admit of any very de= 
of The 1 £ the go -pit tie: “Tt is known also to many that fi bi q' . _ 
diva in spring ; butit is better ee a8 aie t rape 2 American stoves of Professor Nott were wad t6 bats cisive appeal to experiment; but it is certain that there 
end of November. The roots should cre effectively without wy ostensible eebie by the mete | must be some quantity of boiler-sarface through which it 
all round and u) dermi seb 5 phar: rough | jeq leakage of ordinarily fitted doofs and covers. Tn Pr. would be impossible to foree all the age ce a givén 
the head. A : an proportion to:the size-« Amott’s stoves this idea was carried still farther ; his — roduced ; and even when the st I ay 
be cut { mt tween 8 and 10 feet high may 7 Lede Bl — to allow ea ion of all the heat, the ex- 
ca ‘0 Within 34 or 4 feet trunk; but} and we ie ended ah solutely sit-tight The ndniatonof cessiv ih ro 2 maintained at tae outer surface of the 
ating sought Not to approach much nearer; air being thus perfectly ren mmand, and thea , = wing des eck 
the « the tree is not poe to be killed by pal ait-channel being me hae ep soho 
ee ss yet it may be so stunted as to | credibly. s ea quantity ws va sufficient for combustion; and useful question to determine as nearly 2 
th ‘ take scanty foli the euseeseliig season, afd 60 far fio é fire-bara and fuel opposing any sees pig tie the -_ usually we te ed pes not ess 
hit et 1s distizured and a season lost. But | obstrac sick 16 the supply « re air, an_explosio : a sere ‘ 4 than is expe dient, and whether it is well to exelude ¢ pur 
Fe eS fue. 
. the succeeding cove should take place, the tree will beri port a A Be a S See a pap ie ec it had | trusting entirely to the smoke heat, Prater as it 
No F undal seid. Tt was found, also, that 
this practice ¢ Tina negecad is observe the acres oe on Sey ge ee ash-pit v pian mek It is farther objected to the diagram illustrating the 
alice if ; ~~) rm an adequate idea of its import. | f pe combustion in the. gases, combustion | paper, that the arrows are erroneous, inasmuch: ‘ 
annually’ swag ag in—we do not. a a war the aang ane is the road hi 
2 ay tare 
plosion. follow, it is impelled to this 
amex) use If 1g Impelled te 
=r furnaces, if their without which the fire will 
in every 
SrTiy 
