further movement, somewhat resembling the “rolling,” is some- 
times found. It is such that each leaflet affected is bent in an undula- 
ting manner, part of each surface being slightly convex, part slightly 
coneave. This is the “snow ” or “ hail” position. 
The above are the chief movements, &c. of the leaflets used by Mr. 
Nowack in forecasting weather. 
Plants used for making forecasts are grown under specially devised 
glass shades admitting of being heated from below, and allowing a 
ventilating current of air to circulate. The apparatus is needed for 
plants under 
i ot 
ys of the sun by thin gauze £c 
injures the foliage. In cloudy weather the screens were always 
o 
I insert now, without further preliminary discussion, a series of Mr. 
» as they were given to me by him from 
day to day. Side by side with each “ forecast ” is given the actu state 
of the weather as taken down by me or my assistant, Mr. Weiss, from 
day to day. 
TOTO Te 
Forecast for Oct. 7th. 
Drawn up Oct. 5th. Actuar Weatner Oct, 7th. 
(Originally given for 6th.) 
9.30 Overcast. 9—9.30 Fine. 
Heavy shower. 
10.45 Shower. 
] Fair. 11.45 Fair to overcast. 
2,30 Overcast, rain ? 12.30 Fine. 
” 2 Light shower. 
4 Clearer. 3 Fine to fair. 
$ Fine to overcast ; strong 
winds. 
i C de do i RUECL TT 
Forrcasr for Oct. 9th. AcrUAL WEATHER Oct. 9th. — 
Drawn up Oct. 7th. ; : 
i i 9—1 Fine to fair. eu 
n e xn 9.5 Fair to fine; not clonding over 
11.30 Fair to fine. later, - 
2 Change. 
1—5 Fair to fine. 
Later Overcast and showers. 
