25 
The position indicating thunder and lightning I take to be patho- 
logical from its tendency to recur on the same leaves. 
Daily movements of the rachis constitute a periodic function in this 
as in many other plants with pinnate leaves. The regularity of these 
oscillations is considerably influenced by both light and temperature. 
detailed. With his co-operation, Mr. Nowack’s weather plants have 
been continuously under observation for about two months, during 
RC Who 
om Kew. On 
raised in the report his opinion coincides with mine, though in most 
cases we had comé independently to the same opinion. 
. W. OLIVER. 
Royal Gardens, Kew, 
December 1st, 1889. 
Dr. Oliver’s report needs no comment. It only remained, therefore, 
to obtain an opinion as to whether there was any agreement between 
the charts issued by the Meteorological Office, showing each day the 
actual distribution of barometric pressure, and the charts prepared by 
Mr. Nowack, which ‘professed to give in advance the same data as 
obtained from observations of this * Weather Plant." This the secre- 
tary of the Meteorological Office, Mr. R. H. Seott, F.R.S., very kindly 
undertook to give. He has, after an examination of Mr. Nowack’s 
charts, furnished the following report :— 
METEOROLOGICAL OFFICE to ROYAL GARDENS, Kew. 
Meteorological Office, 
63, Victoria Street, London, S.W., 
My prAn Dyer, December 5, 
Ix answer to your letter of November 12, and the subsequent 
- communications received through Dr. Oliver, I enclose our report on 
the maps and predictions submitted to me. I forward also drafts of our 
two plates, and I return all Mr. Nowack’s maps. I should like to have 
one or two of these as samples. 
Yours truly, 
(Signed) Rosert H. Scorr. 
W. T. Thiselton Dyer, Esq., C.M.G., F.R.S., 
Royal Gardens, Kew. 
REPORT 
h are drawn by Hr. Nowack some 
j we have taken 
There is no accordance between the successive pairs of maps, as will 
be seen from tke illustration. Plate I. | 
Earthquakes. We are informed that Hr. Nowack states that earth- 
quakes are associated with the sudden production of an anticyclone 
locally over the region affected by the shock. 
In Symong Macato Magazine for 1884, page 49, will be found 
a list of all earthquake shocks experienced in these islands of late di 
a copy of which is appended. ï have compared all of these occurring 
C 
60894. 
