rs 
Bo 
44. —— — E E g Bath, 
She Gardeners Chronicle. an 
n CUCUMBER.—Lord Kenyon’s Favourite, 28. 6d. 
e ip tre, to to any part, 
ny post 
> mae arseryman, 
pos a of a Post-office order, 
ran quantity ots the above will be sent, postage | + 
age 6 
SATURDAY, DECEMBER 28, 1850, 
cket, 
11 perpa SEED from all the best varieties, 18. per 
t 
Seedsman, and mane 
0 
. 3, p. 373 73) these autho 
progressive diminution of growth to the esting 
is|as is shown in the following: table 
3521850 THE GARDENERS’ CHRONICLE. 819 
1 VIOLA ARBOREA, on 2 which he found in the vn Z growth might be owing ems at said tha this question remains 
Tar A AgpoREA, or the PERPETUAL to exterior causes, and not to any decay in the shige diikat aa ish answer. To extent it 
REE VIOBET: phetai iaa a answer > — in — t | forces th 
* satisfaction given by the p isan ont ) of the trees ; 23 . other th he has been mpl e — Bravais and MARTINS. 
season by saan THEY, be | he 1 bess t to o state that h p iat | remarks that variable rates of increase may TA These phiioaophens give the following as result 
es —.— — f, wih ee igo Fe die aie, 12 whether the roots meet with good a be il | of their examination of the rate of growth of the 
the proper time for making bade or potting. r banati they a e, or perhaps whether w | Scotch Fir in different localities; partly derived 
as Romy tonne trom A oF lenge. Fa Pict a wee based pi ee of being rid of mn — —2 — examination of numerous 17 
and are perfectly: Twelve of Ke grown iu pots s [ing tre and partly fr from information communicated to them 
— —— — a small bed, 9 feet by — — a 
Ag l A winter soa ae spring. Ea se be 7 
‘planted in rather a dry situation an — aa the Prats . Maya raum ~~ ANOS, Lau 
i ta oa wet or elay borders. oe 3 : - - — , 
hte T. has mary tet * 2 © Gre. 50-100 — 150-200 200-250, 300-350 350-400 
of Porsia to mhe Height of sight o oft fe pom a the came fim. per ioe wip me MM MN, MM. MM. MM MM NM, 
i bushy gua ¢ 65. pers rade smaller ditto, — — or aay SA 160 48 N. Lat, 69° sth ae $ = pe —* 9 — 0.44 | 0. 39 0.29 
r hun ello, La 4 4 85 5 52 | 
Also he has 2 fiae stock of that n Gefle, Lat pone 27 2.00 1.47 1.05 0.79 | 0.64 | 053 | 048 v.43 
Tondon exhibitie 12 5 — i be 82 et, Strong Halle, Lat. 51° 30 = eee. 2. 6| 193) 5 poe 
each per d ins aii e e seems not merely to confirm Dr Canpoute’s | of the Fir pani which Eaki exhaust the soil 
in 
in which they 
When trees cow ‘singly, unaffected by neighbour- 
at Geffle, the mean northern limit of the tree in 
Scandinavia. 
e columns of the following Table contain the 
age of — tree, the length of the radius, the thick- 
nesses of each set of 25 laye: oned from the 
feu = the ee tar Rar f 
conta’ wer —— ayers, are indicated b 
The French ph silo assumed that the age of 
an European ney x ee could be determined by the 
ashen of its 5 15 of N an assumption which, 
alt gor ae rictly true, may nevertheless be e taken | W 
ently oad for common purposes. Examin- 
trees as he met with, he was 
tutio causes, seems prov er 
RE igo tevin hers 0 AKS MEASURED AT GERFLE.—Lat, 60° 40“ N., Long. 14° 58 E. 
e,, = B= Botamleal ....sssssseasassaneens 3 pat - 7 75 z 
eee 1 * 3 2 8 49 THICKNESS OF TRE LAYSBS IN MILLIMETRES. 
In Dz Caxporlx's Vegetable e 5 Big) 3 : ; ine : 
is made to show, by the examination us aged 8 bo- | 25-50 | 50-75 | 76-100 [100-125 | 125-150 | 130-176 | 175-200 | 200-225 | 225-950 | 250-275 
trees, th the rat | | ment = er — — = e — — — 
i ba leh „ e species, | 1 b 113 2264 | 66.4 56.3 | 46:6 37.6 105 | 
be inferred that it is more profitable to fell it at 2 B 157 372.4 39.9 48.7 39.4 60.8 9 4.3 68.1 421.1 | } 
to a piet period. In a country like England this 3 B 236 359.3 31.2 | 35.9 | 498 | 39.9 33.3 | 30.8 | 39.4 | 43.4 | 40.4 14150 
is, or at least | h much a a s 111 i M| 243 4264 | , 42.4 43.0 51.8 51.8 0 48.0 598 | 57.6 | 432.0 
ing the landed ` propert t it mi 3 
; 155 bi = al to es oe with a sttiet 5 B 267 3 32.8 41.0 31.2 22.7 24.5 36 2 29.8 26.8 28.0 20.4 412.4 
patars Teverthel stai hich Poke Hii ad 0.0 0.0} 0.0 00 |+19.5} 0.0 |4+211| 0.0 0.0 } 447.0 + 
tha — ao 170.3 2243 210.9 212.8 223.4 | 175.0 138 | 129.4 | 121.0 | 67.4 
yet hat more important? for if De Caspora’s| Div 5.0 3.0 5.0] 5,0 4.52) 4. 3.28) 30 3.0 | 216 
a ong se exact, it is clear that tim — — 4 — aa Mean Thiekness...| 42. 5 44.9 42.01 42.6 | 49 42.2 43.1 40.3 312 
tan peer: stili i attended 1 with pear t is that Oaks of considerable age around the trees that were left. Thus a hard- 
inon 1 00 We iat some inquiry may now | Showed, even in imate, no sign of decrepi- | wooded tree a ea “et choked 8 its youth, 
at t be made into the matter, that we draw | tude, except No. 4, the centre of which begun | by fast-grow trees, and 
attention to the subject. | to decay. And that signs of decrepitude are attri- which, after 8 disappearance, sabe up the space 
te 
they occupied, will vary ini ts rat e of eee ac- 
carding to 
of M. Porrson, inspector of ro a forests i in * paN e, 
who furnished Bravas and with the fol- 
owing statement of the average “of pbs of Oaks 
in the forest of Compi 
0 = pp naie OF COMPIEGNE. 
49° 25 Ne Long. 0° 30“ 
LAYERS, IN MILLIMETRES, EVERY 25 TEARS. 
0-25 | 25-50 | 50-75 75-400 100-125 | | 125-150 | — 175-200 
THICKNESS OF — 
been „mee e ree A tree — up in o 
clump for a certa mber of years, will gain i 
bn > 2 the forth o or r the eighth of what it — 
at gam liberty.” 
“On th the pre — d the A 1 to decline 
at the end of 75 years. furnished Bra 
vais and Martins with the fo Ho 
gr 
of an Ash tree at Compiégne peau ta g the wet 
82.0 | 46.0 | 45.0 | 64.0 | 58.0 | 70.0 | 20.0 12.5 
This table Shows, as the authors observe, that the 
in the 
| soil of the ee of a sugar-loaf hill on the Côte 
Saint Pierr 
URED aT CoMPIEGNE. 
Ver he — suggests that the diminution | 
years Lab. 494 25, N. 30! E. 
i rate of i incr ease in ee mi-diameter every formation of timbe no, mi ormity _ THICKNESS OF LAYERS, IN qae EVERY 25 Yzans. 
10 years, in the following and other cases. For like that of the 5 Oaks at Goffe, At the age i 
example of 30 years, e ms ; 5 2 ome at | 025 | 25-50 | 0-15 75-100] 100-125| 125-150 150-175 | 178-200 
| years, the first 10 | about 80, dimini ag end of a ury, 
ond thee age nthe second temti 3 lines ions 3 be renewed at the age of 130 ; but after 150 years, 88.0 98.0 108.0 48,0! 12.5 | 25.0 | 20.0 | 8.0 
3 6, J * a „8, 7, 6 3 lined rapidly, up to 200 years. So that there This is so like what was found to be the fact with 
5 74, 6% 27 31, 27, 30, 24, 22, — three ima and three minima in the life of some Ash trees examined by the above mentioned 
28, p 16, 16, 15 1 8 ese trees. M. Porrson ea 2 =- causes author, n sag l, that the two cases seem to 
Oak C aged 210 ‘years : 5, 8, 114, 6,63, 7, 54, of such alterations, the clearings that e made | point to ac 
557 43, 1 43, 43, 4}, 1i 5, 4, 455 5, 44, 44, 47 SH TREES 3 AT 1 Uran moti 59° 6x N. 2 15° 19 E. a 
Bie a nee 255 yea , 29, 36, 23, #h : if ; 
p cone 4 15 iby it 13, 108 11, 114, 103, 10, 94, 9 2 my 35 . 
5 j 1 Tbo sket; : A "A 0-25 255i z 3 
: 294, 957.15 12, 12, 9, 94, 83, ni 15, a7; Se 0 50-75 75-100 100-125 125-150 150-175 
1 13, 18, 14, 13, 13, 18, 8f, 18,14 Ta 8 S} 10}. — — 3 —— 
Beet 1| * 17 2566 52.4 66.8 47.0 35.0 29.4 26.0 | 
as, 25 ge ed ad * 204, 27, 26, 224, 2 M 148 265.4 56.0 66.1 54.8 40.7 26.2 3 | 
7 837 64, 6 = 
aye H years: = 52, 6, 54, 34, 64, 4. 3 156 326 64.5 91.1 63.6 42.0 34.5 hee E 
we, 3 gs e . y rather for fa e purpose of Additional i increase 0 0 0 0 +476 | 
showing t of evidence DR CANDOLLE S r> i i Ye 
iunte. = Daha * an unded, than because we think they Total z 172.9 224.0 165.4 1177 901 mai | 
3 — On the — — they are far too Divisors 8.0 3.0 3 3.0 30 2.8 | 
‘few in number tention ; and the i — — 
. not in fact 2 confirm sone smear but he | M Mean thicknesses 57.6 | 747 55.1 39.2 30% % 9571 
— es that, ke with other evidence, they do] In these instances, . and nane remark; Such are the best facts with which we are ac- 
that the trees grew 50 years gradually] quainted concerning the rate of growth in fores 
increasing rate; and . geen as rapidly pirma trees ; and we lay them 5 our readers į in the 
