Ces ee ee 
METEOROLOGICAL OBSERVATIONS. 303 
GOVERNMENT OBSERVATORY, SYDNEY. 
LATITUDE 33° 51’ 41” ; Lona@rrupE 104 4™ 46: ; MAGNETIC VARIATION 9° 25’ 2” East. 
JULY, 1878.—GerneraL ABSTRACT. 
Barometer .. Highest Reading... ... 30°22] inches on the 30th at 9 a.m. 
At 32° Faht. Lowest Reading ... ... 29°343 inches onthe 19th at 1°25 p.m. 
Mean Height a ... 29°826 inches. 
Wind... ... Greatest Pressure... ... 19°21bs. on the 27th. 
Mean Pressure or Orr Tbe 
Number of Days Calm 
Prevailing Direction 
(Pr ili ig di ti duri g th th for the preceding 19 years, W.) 
Temperature gr ad in the Shade .. 71°2 on the 26th. 
n the Shade ... 39°7 on the Sth. 
Gaaeet Raa e nn on the 10th. 
Highest in the Sun 21°1 on the 20th. 
Hig: in Black Box with jbo: 7 on the 29th. 
lass Top ie 
Lowest on the Grass ... 34°0 on the 9th. 
ean Diurnal Range ... 142 
Braet in the Shade” 62°7 
Humidity ... Greatest Amount... ... 100°0 on the 12th and 13th. 
Least ae ad ... 53°0 on the Ist, 2nd, and 20th. 
Mean 76°0 
(Being 1-2 greater than that of th th ge of the preceding 19 years.) 
Rain... .... Numberof Days... —...._ 10 rain and 13 dew. 
Greatest Fall ae ... 1669 inches on the 
12th. 
1°846 inch. 65 ft. above ground. 
Total Falk. 3 “495 inches. 15 in. — — 
(Being 1-164 inch th that af th 
Evaporation Total Amount _... ...  2°111 inches. 
Ozone » Mean Amount ..... st 
Electricity ... Number of Days Lightning 5 . 
x Cloudy Sky... Mean Amo unt og 
aserbe of Clear Days Cee, 
Meteors ... Number Observed ola 
Remarks. 
mean barometer is 0°119 inch less than the average of _ 19 
a ‘aig ata: is a ed eate or + the Darli trict, fine t ke iol have 
—— _only S eo Bae t rling oa omar 
inches at Orange. A 
on rt isa ecaray 3 is 14 feet above summer level. 
