58 
BROUKLVX INSTITL-TE ML'SEU.M. 
lENCE BULLETIN 2. 4. 
The mean annual annnuit dt cIdikI i^; in the nei^'lihorhonil 
of 7. the niaxiniiim Ijciiii^' in >nninier ( 1 )ec. Jan. ). the niininuini 
in hue winter and earl_\- ^])rinL;- ( Aui;-.. Se|>t.). [Nkist of tlie 
clear dax's occur in winter. Tlie (hiys with precipitation were 
20:) (luring igoS. hul ,:;(_) 1 dnrniL;- the \ear ending in Septem- 
ber, 1883. The average total preci]iitation ]>er year, based on 
the records of three years, is 1444 mm., considerably higher 
than the German estimate oi ()8S mm. for 1882-1883. y^.^ 
nun. of rainfall has ])een oliserxed in one day — Aug. 7, 1883. 
Preci])itation at South ("icorgia is at its minimum for the 
Wdv in lune, the period, according to MiKsman. of maximum 
I)reci])iiation at the neighboring continental region of Staten 
Island, east of Tierra del Fuego. 
r)elow is a reiiresentative abstract of the temperature and 
precipitation according to seasons, based on the records of the 
German station at Royal Bay during 1882-1883. 
.Mean 
Means 
Means 
.Abso- 
Abso- 
Dav5 
Days 
Days 
.-Amount 
temp. 
of 
of 
lute 
lute 
with 
with 
with 
of 
ma.xi- 
mini- 
maxi- 
mini- 
frost 
pre- 
snow 
pre- 
ma. 
mum. 
mum. 
cipi- 
cipita- 
tion. 
tion. 
Spring (Sept.-Nov.)l I.l 
3.S 
J . 
9.8 
-6.9 
58 
65 
49 
315.5 
Summer (Dec.-Feb.) 
4.h 
7.4 
1 . y 
17.8 
-0.2 
3 i 81 
47 
241.7 
Autumn (Mar.-Mav) 
1.3 
3,« 
-1.1 
11. y 
-8.5 
59 78 
64 
243.9 
Winter (June-Aug.) 
-1.3 
1.3 
-4 
15.1 
-12.3 
80 77 
62 
187.2 
The pre\ai]ing winds at South Georgia are fn)m the 
we'^t. nortli-wevt. and south-west, but easterly winds are fre 
i|uent and sexere during earl\- Mimmer. Feature- of tlu 
island's c]imatolog\- are the westerb- "hTibn winds" whicl 
lai-h down the iiortliern stee])s of tlie mountains and ;icrosv 
tile fiords with "violence sufticient to carry moderate-sizet 
stones o\er the le\el ground" ( Skottsberg ) . They are oftei 
accom])anie(l b\ a marked rise in temperature. The meai 
hourly \elocit_\ of the wind for the \ear is about -■4.-' kilo 
meters per hour ( .Mossuiaii ). 
The following abstract of weather conditions during ; 
single snnimer monlh is gleaned from writer's held notebook 
