THE 
Jurv 1o, 1875.] 
GARDENERS’ 
CHRONICLE. 
45 
their nitrogenous matter in this way there is 
the less need of the roots,and asa matter of 
fact we find that Drosera grows in peaty marshy 
soil where there is little or nitrogenous matter ; 
and we find, moreover, that the 
ordinately small—there is relatively little wo 
for them to do, and their size is proportionately 
insignificant. 
nic es and such as contain no nitrogen 
n of the tentacles, but much more slowly ; 
i i i f some 
the tentacles to infold in a few hours, of paper 
and moss placed on the ум caused only a very рече 
inflection after twen mawa ours: yet thes 
t ae fra 
fio Senous substances in eee ae bes cause inflec- 
hich are absorbed. Light, 
ha ave no aire ct effect on the 
d, the extreme smallne rand 
t partic cles which will by their impact t brisg 
of the t acles is astoundin n one 
f an inch in length, and 
d 
2. 
© 
Ё 
m 
5 
e case of rain 
an mention the 
mid e Rer: minute dos an the twent 
exterior а grain n absorbed bya land d of one of the 
tentacles Caused it to bend, Tis result appeared 
so incredible that the aimo vac е рне during 
fourtee n years, but there is no goo for LAC 
for it matched atched, by t 
ammonia, about fifty 
t t 
other Salts, alkaline, е metallic, were tried ; 
s i 
s as manurial agents ine rien acids 
caused inflections, while gallic, tartaric, dd citric acids 
roduced no effects. r of other sub- 
ues os tried, some producing inflection, irme 
FIG. 7.—M. THURET'S GARDEN AT ANTIBES, 
being inert. Spi eal ы E ысын noted as increasing 
the re тыл: of Dro 
The experim gd we have e alluding to in bet = 
тоге especiall 
эү бзан s have of ca -r «а 
s ti w to allu 
may, it 
hat робни "etie of КЕ is 
of Drosera ; that 
only by a very few plants. 
been arrepta proved t 
by the secretion of the leaves 
stimulant), were 
Raw meat is ipnjurious— causes 
while skin, fibro-elastic tissue, cellulose, р-он, 
огорку, starch, fat, and oil, are not acted o 
ету т роПеп grains and living seeds the seien nitro- 
gen d out just as in insects the 
$e shell. or wing-case hi 
nds, as in the case of animals, 
e presence ж an acid, but also of a fer- 
ment like the popein m animals. 
ere are many o t pani to which we might call 
attention, but it is "i. better that the reader should con- 
sult the book itself. We have said enough to show the 
ex tasa: А interest of the volume to уде баў and 
plant cu vators. 
be striking — elicited with reference to the 
glandular hairs of Dro. ‘a sera, it atural to turn to the 
ly Mr. D 
similar hftirs of other plants, Accordi r RWIN 
put on re comparative у ж umber of 
eriments with Saxifrages, Pelargoniums, Primula 
нй S, &c. These glandular belts. have hitherto been 
thought to be secreting organs only, but изә learn fro 
ese experiments that they have in some cases the 
power of absorbing ammonia, both in solution and in 
vapour. 
^ = ard to this pneum bie — hairs, Mr. 
N has pointed o к ete which 
will ak tless be eagerly dies mei ave the 
requisite pers and ability, and from which great results 
may ted. The pitcher-plants, 
Sarracenia, ES did not 
WIN'S rese es, but we know, from the few observa- 
tions Ане made by Uis, that similar phenomena 
are exhibited by them. 
THE meeting of the ROYAL HORTICULTURAL 
SOCIETY on the 8th inst. was not a little stormy, 
but its results will be accepted with great satis- 
es of a more hopeful 
he necessity oe insisting on the 
resignation of the members of the 
who have € length formally com- 
pleted this process, is made sufficiently 
