Aveust 30, 1856.] 
and the nearly full growth of it, we have 
ery Fe 
to es a i nai nig or Potatoes mie year, 
indeed fidence has 
come 
THE AGRICULTURAL GAZETTE. 
J Pea leaves. But a m has 
—_ ws a athe rhea o i lie 
he slug or snail se indeed I os 
ot it $ ago. ; mes 
no! expand their production. 
were accompanied and followed by 
fa Let b 
delicate insee! wor them 
y a foliage — 
ant rain, jan far, Mr. r 
with 
cha arged with “the green “te oi) 
pened a caterpillar he |a 
been | glumes running parallel with the keel, and one or two -0 
in Siik terminate in 
- | paleæ is in Ægi! in Wheat 
s either obtuse or, in the Ee forms, por endat in 
i wets: 
587 
a short tooth. The lower st thio tm 
lope not anii ike the glumes 
ee 
toi pe 
as been 
eR ais aa ed by ae 
Nature” na the ea ma va the 16th 
scarcely wi about it; 
still, it has | l 
tertained 
en 
on this side of the water by the des Eea a of tbe | 
a e 
country for very long ti 
y ven by many 
more enlightened men, 
the general 
, although 
ully 1arged’ 
fluid it had pon ae frean, “the vegetable it fed on. 
J. M. Goodiff. 
ÆGILOPS OVATA INTO WHEA 
Wuen a few w years ago the late M, Dunal eer ge 
to our notice the result of the labour: rs € of M. Fabre 
_|_ ]ȘHY b |m 
ON THE SO-CALLED TRANSFORMATION OF rte 
=. 
correct, 
eee 
people | are a little Aragan why it ge ot p 
But we have other pon 
even stranger theories very "confidently = forth oes 
some persons have found, fa voursble 
nä not s e but 
a: 
ovata Wheat, ae. “boty “ol Fiarope an 
bo a, ae he one, 
t 
ame divided in partie: 
which pane the most adherents in k England, ‘implicitly 
believed in the e of M 
lants, leading us to the consideration of three questions, 
viz. : whether there are r eally any ot ie amen 
forms! whether, if there are, they have bee 
byi a returning of the hybrid to one of its pote or 
sitjāšians a or nner m, slugs an: pore 
th 
nae ‘lsh, and yet there d 
simple 
Chroni 
product of the cath; a Spee regeeaies parasite out 
cient to produce all the phenomena which the Potato 
ex] 8 
Very y after the appearance of the SE 
Potato disease unmistakeable mildew seized apoi alm 
every green thing ; the Currantso ee were ee Pata 
the Vineyar ee throughout Europe w ed, o! 
den products suffered from i it, he very Hawt sie 
ur hedges ra not, indeed it has 
period of mildew throughout a sty 
Wheat suffe: 
ped nee 
t that its erties 
culture was for pte 
“Indeed eae has given so | li 
in wr ae causes as this 
w. 
ermal re an 
e |M. and endeavoured to 
chango Sty pi ale op: & oe place, by as: 
tia 
É Bai no mea 
re weed 
| | already de de clared in favour 
fecun- 
| dation of the hybrid with one of its parents ? ra 
of the latter view 5 iti is true 
the m 
"Tales re’s sh arco 
that | 
Hailops mn 
h Wheat, a ‘ocess cy hich, if anpente ah we hybrid 
would ultimately revert to its. ‘parent is the 
d been brought a ot by erossin 
n I have also 
Framin ses 
existence. 
ni 
S par y esexua. 
perience, a it is iera with the sexual propaga 
; ts with oe vere hybrids 
fer and ea 
generations will, } yb sth 
donkey ora horse.. Althou a I have had PEDA nity 
of making any spans yip the pianis: sled Ay I 
indifferent spectator, but laboured 
‘nile with a white The general 
confidence has for the last two o ars been 
restored, ne only in the Potato, but in the Wheat, the 
aise of w mess 
“ ry aa s Mr Rumball 
ft 6 “ the 
, the tubers b 
+ 
an p p uce 
Fimi Henslow 
dim zuibichinig í effects of: aides have Seah FJ a felt that 
t! 
a refore also progressively increased q 
tile even in their aie 
| th 
only one i the }: 
A brid between the t and Esil ps 
of the ziha on isolate ed paa so co they ma: 
| fecundate themselve: ng some be os a d wit 
an ain 
D 
erg: = ae a the pone ey in y 
others I have nee then leaked forward wi mith | 
affected ; if hot an dry, as now, then only a few are i 
pen interest to the publieation of Professor Henslow’s | 
ort on his singular production, and my interest has 
such were not the case in damp weather, whether ther 
were a thunderstorm or se i generally a mer nder 
storm is preceded by „hot dry weather, whic 
fi f mildew ; if no paei 
or follows the thunderstorm the growth of. pr is 
still stayed, if it is attended or followed by rain the ony. 
as “esteemed friend g 
In mp rial Botanical Gardens of that nforms me 
in answering og Tetons ques- 
an not ex fw pies rpk re a and that his own 
ransformation could 
its attack, for the weather i in such case is most favourable | 
and then 1 also most other vegetable | oo 
RT Te 
24: 
nfin e teint in ae place to an alta which, to do 
Regel he remark 
to re attacks, The present year very strongly € 
exem ipli- | 
fies this: the hot dry weather which prev 
summ 
> | now w confirme: 
that 
me was he,- pene: ihe ere Godron psbliohed. te the 
| same effect, started in his “ Garten: flora” 2 ae iotiern, 
d by hi is experime ats, an d that 
The following is the ana ded to:—“St. 
Petersburg, July 15th, a6. ne riments, made 
of Crepain Egilops =a 
one rid 
with the pollen of “Wheat have been suc seer: 
itself now s stands before me, „There 
nothing 
s, which is nirary to usual “Aniani aed 
the leaves “hain slighaly affected, so long before that 
inc blackened leaves are, U believe I may say invari 
th 
4 s à much grea 
to Wheat than to Aigilops. The 
(al 
dat once from o 
ovata a nel oy show: reater 
indi sidani sed | 
about 10) do not diferi in the least Awa each ether: pod 
= perfectly al The thin prostrate ste ms have 
anged into s strong ro robi mice wnat boss veneer they may | 
rect, 
key means tt its own oi n. This latter 
| theory, only yor ronnie po yi Ed. Rey 
Since the 
Athenee mM a ive abstra 
at Cheltenha 
e ad sakam r succee 
Ægilo mes 
Fabre’s original uninet; hati was thi 
omestic Whea 
und 
change ; but 
the characters 
will render 
j error his ex 
hith 
he may 
positive fact by a negative 
akir believe the ae which was the subject of Prof. 
Henslow’s experiments was Æ. squarrosa, not ovata.] 
iiaea we nt peter hn ate no 
general 
detects the visitation, and very long before the mildew 
spreads ; the pom pi it exists pela posit aapa a - 
the — of the atmosphere, tainly 
before the tubers ico e di en 
obser mation sadi 
2 
+h 
Pome suc- 
hybrid alw ays s bore 
i ll “sanii me is 
With respect r Irish discovery, the slug 
snails naturally infest amalverea and moist places, whieh 
are also th mildew ; indeed, 
carin 
= Lp e — A ER ARENA” p envoy terminate in 
2—4 aristee, 
= se here ; the 
Hiilope but a 
are Eup ,as in 
hy ei gilops triticoides, is really ni 
riticu r its glumes _ aleæ 
ilopo, € janen but they In Zigilops 
, and d have equally thiek ae veins. 
extent—70 acres 
i an adhesiv 
nt and rates, 
1 pote the mode in which you will crop this farm, 
e 
those who doubt the di sease uebit a milde 
ack, 
pointed, or terminate a 
ta. (Forthi 
indication -—+} ] 
of the Potato plant is found edged to the breadth 
half an inch with a white mildew ; it pees I 
h 
be 
lames are = 
farm, supposing 
it situated in midland or ee England—giving the 
under several crops you codeine in 
in 
uld, for the sake of round 
11 acres of Pad arable land tying nearest 
puna 
the steading, 
| and aro it to grow Italian R, be ae Rye, Potatoes, 
and — vane things that should tura up in the 
We should then have six equal 
more fiore 
Ih 
yed by m 
ran two Pianis bears ne 
ae ve florets, on the base o wht ch are two 
ee which colle surround Pia pieiet when it is 
young ; = afterwards not at all. On the back we 
the | 
appears, the cry ol 
ateral keel so characteri stie of Triticum, ti 
or 80 acres, w 
"or 40 acres, wo 
, or 40 acres, a te Massal Wurzel, Swedes, 
Turnips, Vetches, Zai 
or 40 acres, would be Clove 
TE acres, would be O: ng 
hould th Wheat twice in 
ss the milde w edge is seen I 
fell It is rather curious, | 
years ; Oats, 
Clover, and Sean, once in six years; Mangel Wurzel 
ihe imest themnselver The tendency which the hybrid | 
f the 
however, that the mildew falls on the upper 
once in 12 years; and Vet ches and Turni rnips once in 
. 
