180 
THE GARDENERS’ 
CHRONICLE. 
[Man. 19, 
or beginning of the present сіе is Корез. to solve. By referring to Mr. sigan apt gros of 
they hav 
In this latter period t 
are, variously constructed, ww yate un a 2 
of greater or less area in 
of 
jd Clim ate 
. opening, others square, an 
both ans Howanp, in his 
in or zinc, exac 
a 
sloping toa aa me x ca centre 
r, Homers experiments relating 
to the supply. of water ema the ema pages of Man- 
gange, 
— of a s 
2 inches diameter, fixed 1 in ai, a eres that all 
the rain driven against it by the wind, and flowing 
down it, shall be caught in a bottle. Mr. Номкнзнлм 
states that the rain-gauges fixed by the Literary and |i 
Philosophical ty of Manchester were bi- 
nation of the staff and funnel gauge, inasmuch as a 
stick o or indexr red, three-fourthsof an inchi in diameter, 
may 
cal tat of 
es P the side, open 
bove, receives, at an id My its edge, a funnel, 
” 
strong 
f | A port 
| subject of e 
small 
gaug 
observed voe 5 difference is it unif 
ome snmp — 
of the wi 
with eue resisting body, su 
auge, must thereby be deflecte 
AD eos * the pressure o 
E: t4o s. This force will be т безше їп 
all dic de Meri as — as FA ards; but it 
is only that which € ару; hat affects the 
enquiry ; that — ‘evidently tend to 
alter the direction R the fall of k so as K throw 
it over the mouth of the receiver. The greater the 
v of the wind, the greater the obliquity, ot the 
of rain, and the more easi y its course wil не 
nged. If the rain fall perpendicularly ther 
the qua 
fall of rain, intercepted a quantity, of of m d and 
results gre. indica 
by them them for a year being from 54 p^ 63 inches in 
er states that the 
reatly in excess, the 
‘comparatively little surface to the then 
cular fall of rain. 
strong, and the 
8 almost horizontally, "the upright surface is 
to it, and would, 13 8 
w 
d be received 
e ar 
by t 
SITUATION. diam 
Annual 
Inches. 
eter.| diameter; 
dep of — ot 
Inches. 
Annnal 
Med came 
rey the difference, 
o difference between antities ган 
by a large and s all gauge, 
being nig into — at least not from t 
cause ; and any ot 
body of water, can have but 
owarp, “Climate of London; vol. ii. p. 159, 
alludes to the effects of the wind in — dis- 
ee situated gau “Th 
crepancies in differ 
es, “ another source of дзота resnlts, 
nded to. 
ents, On the 25th of Pee d 1811, finding 
a gauge, No. 2, placed ass plo ot about 
70 feet 3 е west front se, 0.46 of an 
inch of rain, w 
a glass turret on fies top of the house, there was only 
0.12 o an inch, I —— that the wind, "which 
squalls s from t 
on a 
of the vam 
gauges, Me es 
in the gutter, near, an on a 
parapet of the house; and No. 4 about 20 feet in a 
line to — ^ the same height, but in the valley 
between the roo n beginning to rain 
in демеу EN еа ihe wind fresh at S.W. 
After аел — and a half I found in No. 3, 0.08, 
and No. 4, 0.11 of an inch; No. 2 on the ground 
having e 0. 11 of an inch. I маё No. 4 about 
= feet to leeward, néar the east parapet, and got 
n an hour and a quarter "9 pet. 1, 0.0 o. 9, 
0. 15; No. No. 
3, 0.12; of an tok "The 
as at times „ as тене fell on "n 
46.87 
20.67 
58.99 
27.89 
leet nd gauge as on ‘tel к e turret; an 
results of the other ganges ond that euo bet of 
the difference t be attributed to the wind 
between these. "or it appears that the stream = 
air, obstructed by the west front of the house, a 
e 
2 
rain 
Todd's Brook, brinks, top of hill 
1500 feet above level of sea ty 29.50 
hill; 620 n t, bottom. of 38.39 
ону ста Boe 4. oil, 1670 feet 35.85 
cou 
| 51.30 
38.76 
38.60 
more than its due 
on, the sede bole He adds, “On the 
— as the А ope — 5 of ealeulation meg E 
min when the latter falls at an "e of diee, 
. & plane, say 12 inches long and 3 i 
ce to the wind ; and pro 
: 45°, 
the rain falls 
but if th 
Iti is nthe depth of rain which = ona horizontal 
uired to be ascertained 
orizontal plane. 
placed, why more rain, per re foot 
one of small, is a question which it is most d. 
that urfae 
can only give a correct indication of the quantity of 
Erect 
ith a 
a very |а 
perpendicalary 
n wer 
and therefore тег есе ай mus 
t 
co — € is the rain on the su e ground, 
is the proper Sidinxty situation for "thé gauge ; 
il 3t should be as remote ssible from al 
«Тын that may give rise to eddies in the strea 
dis d over it." This of course should be 8 
according to the view we have taken, it 
should be placed so that ev the apparatus itse 
mone - disturb t the эчү. of ai 
subject is important, it Fought to — 
eee by those who have the most com 
means of e 
su 
or 
In the 
EE 
square ld fall 
in one of large dimensions, if that be really so, dii in de 
another gauge, of the меле; a eng but standin 
or 3 feet higher. 
Iris me a little singular that we should not yet 
ve been able to ore the importance of those 
GREEN  BELL-GLASSES sh э ch the French 
market-gardeners call Que At one time it w: 
common to see in our ttles 
“ ox. 
esirable 
in the present state of the glass trade, 
er, such as —€— to the larger 
t: ou 
e | the second w 
ret 
n No. 1, placed 43 feet higher, * 
7 
rain continued six hours, 8 k steady wind, and | system o 
= 
e 
A 
| rain in th 
in the Jar, 
- Hoá ge . In pant 
glasses in England as in France. 
5 x 8d. each in Paris, and w 
mi ment be — at the En 
sale. 
e barg cost from = ine 
eu Phe va 
еу er sets up a kitch 
of the better ind, for the supply of the Meer 
finds two things indispens able—a bree pump 
€ supply of 
Aene 
a r Snell cro 
se a alee tui either cold or wet, that 
1,659,900, which, at their — price of 10d. each 
represented 2 a capital of nearly 70,000/. sunk in wr 
perishable 
The ey are per principally for raising salads in the 
e summer and au 
bell-glass. By the end of April thi p 
and they ерк for ва ; the latter are gone by 
n Se иш, апа аге " 
Ort 
crops of Carrots, small. йек ‘Chicory, be, ., instead 
of Lettuces; and the ey reckon that the market value 
of the wet oer of their 3000 cloches, in the course 
s a руни, is something more than 160]. —not a bad 
ti bar way, and by similar 9 — 
Каке , that Paris market-gardene 
to live well: upon little i of ground, hat with 
PUE The rental of p 
ground in that capital is from 20/. to 34/, per 
acre ! coming to the quality of the. en and 
t|other Leah paris the dearest is on the east of 
the.city, the cheape st. on ths south ; annual 
at s 
to extract about 
require a eee nce 
but w 
lear 
wou space to explain 
this is done, 
wa sha ll endeavour do brin 
able, if desirous, to make a secret 0 
ithin tho ti of 
120% 
‚ 120 
little exceeding an acre each on the average, trac 
secrets would be very difficu pM 
he Exhibitions held in Regent Street this spring 
show — et t en тнт are in 
qui ee indeed, ps English growers. fear to 
„бу. them e are 
for it—sorr У бот the 1 of our iid | reputation 
as horticulturists, and sorry because the eria 
result will be the supply of Covent G Garden from 
Paris instead of salidas London 
ARGE AND SMALL RAIN GAUGES. _ 
M omae occasion to collect large quantities of raite 
water for the Burgess of chemical anal : 
about a month ago a large gauge; and thinking i 
advisable to compare this with th i 
gauge will weigh sadist 
a i aaga il oat by 7 
igh 
e exposed in the large s 
аз 320 to 1. 4957 multiplied by 320 gives 1 
ch is nearly the caleulated weight of li 
therefore, 
e gauge together, ve havo о 
| multiply each 100th of an inch by 3 ibs 49% 
erstand why, i 
it should not be as pr rofitable to use these large bell- 
how many pounds of rain in the large gauge 
