December 20, 1919.] 
as 
citric. acid. Where the growing seas as bee 
sufficiently long these slags are vir. uen 
as useful as the others, in р of pei low 
solubility. Where the growing season is shorter 
о Гу, the id soluble 
e 
a 40 per cen orti Ty ice in pos 
parison a pe teak а; { 18 воше- 
times cl tha e 20 per cent. slag is as 
good ther in nine cases out of ten, and 
that there is, therefore, no point in paying 
d t help th 
way 
“There is m doubt 
earned abont these new slags, 
ible y may do so 
a good deal t qe 
o 
таң investigators have not yet Һай the necessary 
е to test them as pg ek as is desirable. 
x present knowle dge e, howeve vi is safest to 
дор, me old plan judging din e - Eus 
he old, on their t ing 
heen о TER muet. з the "unit tym. 
insisting "he pro mw = of fineness of 
zinding. On this basis, cent. slag is 
vorth twice as much uii E per cent. slag 
tog | su y for 
diffi cost of handling a s as compared 
with a large bulk of material. Having allowed 
robably no ат 
PLANT NOTES. 
COSTUS IGNEUS. 
ber ` of the оре 
Emu as on f he 
reason of this neglect 2 s сын. ult to u d, 
às the on is by means. f. tidio in its 
req ents, "the brilliantly coloured 
blossoms are produced during the winte: ostus 
ligneus f a dense, leafy clump, the mai 
shoots of which attain to a height of eighteen 
inches or more. blossoms, which are borne 
1 спе like heads on the ts of the shoot 
аге іу a couple of inches in diameter, and сї 
an intense deep orange colour. They are thin 
In texture and individually do not last long, but 
is maintained from on for 
Durin 
h 
ing. A suita 
` ne ` and. leaf-mould, with a 
Eu ng o silver sand, dried 
carried o 
tus is a native of Bahia an 
troduced by M. Linden in 1882. Ww! 
LIB FLORIBUNDA. 
Or all the сава) ge used for 
vecoration of conservatories dra, 
onia floribunda. is pot od aps Ше к lo 
s 
with fire-coloured 
у. 
10b, however, so often seen аз it ош 
‚в often classed as а stove 
18 тй hard: 
1 a eenhouse without fire- 
: одр it enjoys s piety of warmth, and 
E бово the earlier 
of Libo Mis зўе „Special the 
ырш ро Bers ge ue saith 
trous pare the first of which is that 
THE GARDENERS’ 
CHRONICLE. 
313 
they need a large supply of water, and will not 
flower without it. 1? allowed to droop, the 
entes fall off, leaving a collection E dying twigs, 
ecessitating cutting the plant se 
a ihe knife И. never be 
e them, except where the plant is 
i M form of L. floribunda is neat and 
and if a vs is cut back after flowering 
it p ot bloss e next year, for it requires 
b 
supply of fresh food. 
Directly after flowering, the plants should be 
being south-east, with the pot sunk in a bed of 
ashes. The roots should be watered ms 
daily, even in rainy weather 
Soot me in oo: weak в may be 
è roots or ene Манд ау ahs e's беч E 
the iade After potting in- the early 
autumn, the same os iiec against the leaves 
drooping will be necessary. 
Taken int 1 
gr reenhouso in October, the 
н ^ А 
o 
The propagation o of Libonias is not difficult. 
Cuttings of the new growths about 4 inches long 
repotted, shaking away about half of t the old 
soil, and then DE. the roots in topa water. 
Plant in containing well-decayed old hot- 
b the specimens in cit 
а 
зб siz as before, shifting such as 
quize larger receptacles in August. 
pecial precautions must be taken to prevent 
the foliage drooping for ew weeks after 
tting, and the plants should placed in the 
pa d on à me? Бор. ү, 
led v 
pli 
"ане jer My the ен grovibs sh ened 
in the open, the best aspect for the plant then 
Fie. 147.—THE 
LOGANBERRY. 
root readily in June if kept under a bell-glass 
for the first few жаы) until they begin to grow. 
If the plants are potted singly, and shifted 
into larger pots as tha roots require more room 
they wil neat little specimens by the 
ollowing spring; but tliey should be placed in 
a cut , containing a few inches of р 
ashes, and red with pieces of glass, each 
time t their roots are interfered with, to 
prevent the leaves drooping. After a week of 
this treatment they may е ке li 
air and = — in the sam 
plants ichmond. 
ght and 
way as the older 
