724 
THE GARDENERS CHRONICLE. 
B. 
[ Nov, 11, 
the Pear in question, for which we are indebted to 
HOMPSON 
n Mons- Bion le Clere Pear was raised 
M. LEÓN LE pore of Lava 
have the й me of Van Mons бй with his own 
E: the dis mát of the fruit. 
were first sent t to the Society by 
The fruit having á been approved of, à 
number of, trees were intt to this coun try 
it 
Qu stock. e tree is a good bearer, Бої поё 
such а rete aee as the Beurré Diel, for example, 
and others that ‚= "ч fr ^ herefore care 
should be taken that t not overbear itself. 
enough w 
be forgetón at the time of thinning the young fruit, 
when that p large and small varieties differs but 
little in siz 
n shown on more than set occasion that 
: and he wished to | e 
of it |i 
- areg an m account of its sudden disa 
rapi In 1848 
recollect, one p of birds 
rds Thre 
Ireland, has threatened-to-close- altogether the navi- 
gation of out canals,: No опе-сап wonder that such 
an-enemy -should have мы" very great alarm, | 
specially “since there no appare eans of 
déstroying it. "Eve stly process of removing 
it Bý таппа liboür, was evi M. but an unsatis- 
factory PM UU We therefo 
o little pleasure as well as surprise, 
mportant communication from 
vonshire. correspondent, which points out a 
о and costless remedy. We give his statement 
verbatim :— 
*It has at various times been stated that this 
plant first appeared in б och of Dunse Castle, 
Berwickshire, and was det Johnstone of 
ted by Dr. 
as "a entirely disappeared ; 
akes 
agents a 
progress of i 
s growt 
f | at the time ; dui in 1847, the loch was so complete 
filled with this plant, that it became impossible to 
I 
pull а boat through the] water without the greatest X the fi 
ї 
exertion. 
^ At this time there were a few swaNs upon the 
loch. Indeed, these birds were accused of havi 
first introduced it. The swans lived entirely upon 
m d ap and OP to increase t. zi e өы. un- 
manner. 
of 
* | hesitation 
оз 
[=] 
2 
s I сап the 
raised wir С кт» T 
ods 
cold, wit sometimes happens ===. 
isel same "AT - tar Ud АМ 
r$; and some: kinds LI. № 
an 
gathered. 
diseased eon dition DRN 
motion e — а tendeney is'the ү point 
skill is directed 4 i RI. 
ES more must we restriet'oup GET 
E E өтүгү cec the num аа 
оесиру the time and anx 
wW 
8 ' petals, pels; 
represented by leaves of the normal em 
though йыш F in size, disease is recopni 
in numerous other 
object Lob M: florist is to produce 
rom the normal form 
: e pair raised bro each, | pronounced diseased ; and so the irs for 
ildew, is not t of раа several pair which reared Кира three pron the bahid " mt н 
früclüfication, nor that which is most indicative оа уо young. 202. i We must not therefore regard every бетй 
пе real afin ties of the fungu шау) «Ву {һе year 1851 or 1850, 5 vss which, the | from the normal. conditi ^s 
be said with is probability of the mould which e was ehtiy, ot at least nearly so, cleared of for t the Purposes of vegetable pathology, 
at the presen 1s po ШЫ of very appearance of the Алаа alsinastru rum, and | attributes of each indivi 
Swede Turnips, (ош perhaps no on et the ends which they are intended to an answer, uu 
as уе 
the ordinary Oidi oid fruit. 
owever, of late 
ULASNE, ' namely, that У 
well-known fruit of Botrytis infestans, of "which s 
discovered mor 
much has been said in the numerous discussions o 
i single leaf. o eed. seen in the loch, so com- | 
the Potato m murrain, is not "- ier uly the real frait pletely Валона або S|fremotlr wata 
n тт = aces of vesic ме 
th en the swans began t had them 
fed with corn and b TN but nothing seemed to 
save them ; they gradually began to 
now reduced. to the original number 
? | But for the last three years there ie 5 been one 
реа of: it, and appear to be its most relentless 
pers 
- "This i is sô curious a fact, that I imagine some of 
Eun WU dto К Berr. ; | your correspondents may like to try the same cure 
and several ot p us trou НЬ pest; for no other mea 
i Patin mce ulds, like thi the: various. species xercised even the least influence 
anc Ed x habita; i| towards ужу it. I think last season the avec 
um did not hatch one, or certainly not more than o 
pate ч t true parasites, хойлог amongst the young bird ; ll as I remember there е Was ein а 
ealiny tissue at whose expense they live. The single nest, or as paia not more than опе.” J. В.@., 
1 m traverses in eyery direction the e e е |-Dezonshir e, Nov: 1, 1854. 
passages the we side o 
orne 
Ша, though | germinating ET Ay 
дог the most highly-organised . 
fructi ification is contained i 
sedii species of ifs genus found b Mr В 
on T m ua. may possibly be the оне 
в Si Do of Bo asitiea.. 
ET 
dg E era SN far larger than the 
with a cellular 
myw ; warty, or smooth 
episporium, which separates very readily from the 
inner me e. 
If the Artotrogus of MowracNE be really e 
the 
B. infestans › Which Тогаѕме has m 
isporium | is strongly schnitt, 
as are the sporidia of so Truff 
fect fruit of 
ie д Г Пу Mege and now it is 
equally certain, from the айа of Сок d 
De Mm that from the sam vdjes 
маар mycologists will 
эю» their present systematic views. M. J. В. 
of 
E) "NEW WATER WEED, peces alsinastrum, 
Ze from 
"we gave a full ассо derived 
g tranquil streams in England, Scot tland, an 
tna teil ynptiend in “ “ Botanische Zeitung,” 
18 X: vered by Dr. CASPARY, ж» o : 
DA e ае by i ete ie hav де я bz 
A EUN forth as "werten in € Н snap de |/ 
-Š icd IRR S | 
ара. ге I 
Ta di probabili Mute pro- k 
rcellular d e Potato; 
А нне in 
pi? portion of E or fibrinous matter as m 
nece ео 
а | soluble matters, fo for 
be obliged to modify |! 
Marshall; in our volume for 1 Um p. 662, Led fie 
ш VEGETABLE PATHOLOGY.-—No, XLV. 
ll" Though the abnormal states noticed above ma "ad 
iwer! еә end of the р, and therefore cannot 
tó his notion of diseases, they are, КТЫ! 
im e or i 
Hi 
large doses of 
— Š on ue gp! hand, it appears evident тя 
clusion 9t such 
Mud po tarch into sugar 
d per germination of the tube 
Such a state is clearly in itself а ater кч state, fhiogh i it 
ca ered, as regards the purposes o 
Ў ded such tubers ue employed wed 
for die and not t for reproduction, 
e 
y the whole 
ned 
ot propagation. 
^ repress such re 
e.nature vof t 
extent, are the i jaratni, hd 
in ithe „Mulberry. and wild Fig tree b 
mbryo, And yet, 
treating on. арчын pat bolo we must restrict 
зб, 80 as to exelude su 
200. ме e e such ve the M 
harsh to. aff. 
Medlar, Service, &c., 
afford palatable or wholesome food 
uli 
5 рна will m ^ considered, as far às 
of disease. Їп АЙ 
8 d it | form, ar 
hey follow the small burns down tó the Whit найдет 
heir 
[oes i 
use 
his natural 
moderator of — 
te 
our | te; 
g characteristics are maintained, they are to Wa 
did as healthy ; while deviatio 7259 
concerned, of 
e necess 
action is going - an possible, 
proper remedy. M. J. B 
E produetion: of frost: mh bë 
ii 'of heat from tlié esrth. З 
By radiation is meant 
on the surface of the 
into 
power t P 
breeze; he ! 
forth at "and 
in proportion to its we 
T евз! a y by ni 
per b an [; but. pt 
eze 
chiefly e the elear' calm ced 
that the tem 
E 
Ф 
t 
(if the term 
course 
ceases 
But such is the реча 
were it жок. for the eye 
unobstrueted : 
ны being : peer] ї 
{һе да -— 
tem rue ball our r пошеќег Won гора) 
sink to zero every с1ейїеа!йї night. am quo qe 
reservoir öf” "heat inest ME. 
rmometer dd 
the night of — 24, 
ss a small eee 
t 
my 
till 
may be prom oted | r 
эор wholly prevented by undue 
rule, it may be 
the previous heat of 
