164 
e the re- 
discov very of "Me nde Ps Pn wr the s снай ти 
— oi the genetic school which has brou ght 
us entirely new point of view in regard t 
pur nt of field cro wont 
o the Improve. 
of our possess po 
the “requirements of Шз country арргоас 
thing like two million 
sugar-cane, ph nies its 
m cultivated in коры! an 
aii еп emote a 
ucing 
casionally by nd a ion a 
OSSeSS ing specia! merit. 
“8 
e area W: 
tonn 
in 1 
ripe s nes Harrison x vm & оц to utilise 
the very and obta rig оЁ self-sown 
ni for aparte Similar seed- 
mg: were ао available i ш: ‘in Java ‘about, the знат 
зва т pen period standard canes 
pation oat е prt igns 
of po wi teer "attacked by disease the dis- 
covery of se was 
n fact, 
oral characters of ; beat 
sugar- еше ur AAR: ‘the fact that 
the ш while 
Заде as taken 
ot this circumstan c secure cross Ун үги 
by ч valet rere) canes of each t in allé. 
nate rows. y this and other means, rpm 
devised, several varieties of sugar-canes of gr 
merit were raised. 
The possibilit ty of breeding sugar-canes y Cross 
fertilisation under control on Mendelian lines has 
pic У , but chiefly owin 
io the difficulty of manipulation in the field 
n Brain and kdale made eful ex 
periments in 1908 1905, but the results in 
both cases were disappointing. In spite of this 
large numbers of peer Cae been raised 
in cases where the seed-bearing parent only was 
k In others neither parent was на, 
Тһе results, on the iem base чобун d ag 
Seedling c have 
€ the rage of Bs older varieties, while larger 
т асг obtain ied. Further 
a marked 
dentate in ao f the at f insect 
and fungoid pests. 
n British Guiana it is bi aated that in the crop 
of 1918 ip deedline canes occupied 83 per cent. of 
the total areas under canes. Similar results have 
been o Ж рсе at меро, where Bovell has соп- 
^ seedli 
vegetative vigour, and se 
* n SERE 
суроо, su a 
ї2,. ascertain hes 
j Vegetative vigour and 
‘that follows a first cross, only to disappear 
(To be continued.) 
THE GARDENERS’ 
NOTICES OF BOOKS. 
School viec 
CASIONALLY one is ked end a 
ir ips for. M vho е © still at ‘ica toad. 
. J. Norr = seems very 
iti 
ep 
and yet пасу gr not been 
en ed to simplicity of princi a 
he subject matter is the cultivation of vege- 
table, fruit and Дың ers on the scale of a school 
ge garden d there are chapter: в on the 
Ther 
res "I wurde 
is also a Salou of Operations and a Sow 
eges > Table ыы illustrations x 
numerous 
we a ve sid, пне speaking. я boo! 
is “accurate, jw ir 
given of Ex. 
aci v Мр milioni. а i is Mp that 
they are due bage Roo y (An- 
thomyia адна e pum Gi RE RA is 
ste wrongly whenever ү occurs, and capitals 
discri tely in botanical names. 
ES 
r 
for youthful 
sufficiently detailed 4 or Pees for udults 
ice ашыт 
оге or less а rev of the 
Tuts book 
iocus of forestry pun the timber е4 in the 
British Isles at the 
generation, 
in his introduction 
fore home his point on ne small percentage 
the acreage of the British Isles under timber an 
the annual value of imported timber his fee 
show considerable variation. Thus, on pp. 9 and 
10 we find ‘‘ and yet the sum dm of y wood- 
lands ,previ pid he war 3,035,590 
only 
acres," an Ш thers are, per- 
ps, no pene statistics of the total quantity of 
standing timber we possess, but, accordin the 
most reliable estimates, wr 3, 
pi a total of 77,000,000 ас: 
n p. h 
© 
ы al area of woodlands in I coant is onl 
little over 2,000,000 
demand e 11, 
= poa е of. which exceeds £33, 
nnually import | over 
ab a бб of 
rt clude tree planting he State, for- 
ation of plantations, trees to i ME financial 
returns, schools of forestry and faker trans 
Th apter on wee cont t of form plantations 
s compariso 
cha than a pur io a, cost E it would 
ifficult at ues presen m lier, 
о be ca pied othe 
Y egg e isthe ДЫ» the шрот 
stem of training for foresters 
en- 
ending a xeu ausa his period 
Wd young man € for a ges time, apply 
V smear to the entific or purely theoretical 
side the эшти? М: Webster has 
а и іп produce a very readable book and 
at the same 2 г in а public the conclu- 
sions ot who a life-time at the 
or] 
* The ool Gardener, by J. Norris. 194 pp. Cassell 
and Co, 1. -ondon. 
+N sl" Af orestation: By A. Webster. 
Fisher Unvi , 1, Adelphi Terrace, eg Pg са 
CHRONICLE. 
[SEPTEMBER 27, 1919. 
ORCHID с 
Е 
у Н. G. ALEXANDER, Orchid Gro 
Вогғовр, K.O.V.O., O.I.E,, кышу Gloucestershire. 
easonable Notes.—With the 
e influence of Sag sun is not nearl 
o has been 
er to Lt.-Col. Sir G. L, 
shortening days 
so much 
m necessa. t 
should be to make the most of the sunshine 
during the next few brine to thoroughly harden 
the season's MÁS th of all Orchids, "hus enablinz 
arious kinds, State of growth, and ondi 
tion of each plant must be separately considered, 
and [о treatment varied according! 
"WT . 
ulbs 
d S de ido ths an 
esent conditio 
plants need a 
mater should 
This and the last pem 
in the cool-intermediat 
long Т 
cec n (0) 
be E appl 
f 
d duri at perio 
e: the roots. 
plied н ‘a be res sted 
эму iege л 
FRUITS UNDER 
By W. MESSENGER, 
Gardener to Maj J 
Woolverstone Park oom d 
—Pplants for mid-winte frui 
eigen pce in 
The gro 
Cucumbers а 
require frequent an 
i po go 
5 remove 
Бога 
с 
E (б чий Сас 
“ 
EN EITAN 
