Marcu 16, 1895.] 
THE GARDENERS’ 
CHRONICLE. 
hitherto available for the estimation of carbon 
dioxide in its biological relations are open to serious 
objections, either on the score of the amount of time 
adaptability to biological research. Should 
B 8 — — — aes 
for it, examiners in botany will h to be 
grateful to him, as it will — agers: the 
“marking” of answers relating to questions on the 
Cc 
~ 71 Rac 
exchange of the plant. Under ee conditions, 
such as the — of the stomata or inte 
spaces, he admits the possibility of the passage 
8 through the 1 of osmosis, 
beprer prh leaves, fally illuminated, 
whole of their respirat 2 carbonic 
acid, and n none to escape from th 
Dr. Morris, C.M.G. — The number of the 
dens, Kew, accompanied by a sympathetic account 
of his E for the promotion of the welfare of the 
AA 
/ 
0 
e 
* 
T. 
1 
Fie, 45.—DIMIDIATE CYPRIPEDIUM. 
Wen and respiration of carbonic acid. The 
by which carbonic acid passes out of the leaf in 
* ion, and into it in assimilation, whether by 
ti stomatal arena only, or through the whole 
iia tax is a question altogether ignored in 
views books. whilst in others the most divergent 
are put forward. e 
n of the process is, perhaps, tha 
— 5 the stomata, It is not our err 
Sy k, — the results he claims to have sarc 
sider normal conditions he finds that practically the 
1 Pcie 0, into or out of the leaf is by 
argues, therefrom that — 
ume p — holds. good for the whole of the 
r 
Leuk, in the 
Colonies, especially from the point of view of 
eee * hortionltare. 
BRISTOL NATURALISTS’ SOCIETY.—A general 
meeting of the Bristol Naturalists’ Society was held 
on Thursday evening, 7th inst., at the University 
College. Dr. a? denne the chair. Mr, CxDRIO 
BuckKNALL gave a “botanical ram 
in 9 “ihe” - e begun at erg 
was thence continued through Berne, the 
Lake . Thun, Frutigen, over the Gemmi Pass to 
Rhone Mone i Zermatt, Visp, alee 
and over the Simplon Pass, 
return om Locarno on t as lake aa d the St. 
Gotthard, to to Finellan, down the Lake of Lucerne to 
335 
the foot of Pilatus, and thence to — cn 
Grindelwald, over the Wengern Alp to 
ute. y vote of thanks was 2 to 
Mr, BocxNALL or Mr. RICHARDS, 
SPORTS. 
Tun question of the origin = these erratic pro- 
ductions often arises, For ou art, 
rong a * one reason * their e may 
be fou n the separatio xing of pre- 
cau “combined characteristics. A ‘oroms, of whatever 
degree, issim 
a anmh 
po the 
— or unstable, e result 
e the produerion er a “sport.” e flower 
represen e from the Pillars of 
Sir F. Wigan, at — It is a form of Cypri- 
pedium Dauthieri x, which is seat. pam of a cross 
directly or yon: ot of arbatum and C, villo- 
sum. The shows that ee of the scape, 
ract, —— ts, lip, and even the staminode 
artakes of the characters of C. villosum, whilst 
ve figured similar varia- 
We ha 
tions in Calanthes, Chrysanthemums, Roses, and 
other plants, 
HOME CORRESPONDENCE, 
ISLE OF WoT — Thie gar ete of 3 vers 
Roses, Teas especially, 
are in m illed, others much in- 
jured. The amount — damage will be better esti- 
mated in a month or x weeke t time; but so much 
has been done, that many 0 
bitors will b y Į 
shows, S. Heaton. 
NKER.-- 5 ig me with the 
vie Nectria 
to reply briefly to his criticism 
ply ! y 
1 er“ the cultural 
tly will re-read the 
0 
causes of, canker.” true that I did s specify 
d describe at at length the cultural conditio: 
ycelial threads,” that 
must sooner or — succumb, I cer- 
Pinky did not mean to im ly that ay geri 
— of the nature “indicated by E. M,“ will 
