GOVERNMENT OBSERVATORY, SYDNEY. 
LATITUDE, 33° 51’ 41”; LonGiTuDE, 10> 4™ 50-815; Magnetic Variation, 9° 35’ 37” Bast, 
APRIL, 1881.—Generat ApsTRacT. in « 
omen r .... Highest Reading... feu es 351 inches H: the 30th, at 8°30 
At 32° Faht. aove pee eee ‘576, +onthe 13th, vat pe ; 
n Height ee 0105. as 
: (Being 0-080 greater than that in 11 th n average of the preceding 22 ak 
Wind... a Greatest Pressure ... 20°5 lbs. on the 9th. 
“6 lb. 
: Mean Pressure .... ee 6, 
Number of Days Calm ... 2 
anne Direction  ... N.E. : 
aT +s se Ba il ding 22 years, W.) 
Temperature Highest in the Shade... 86-9 on the 9th. ty aay 
; mth i in the Shade... ns 7 on the 30th. 
Rog ' Greatest Range ... Sa ° : Ce 
: Highest in the Sun sy rete 9 on the oth. oe 
Lowest on the Grass... bags the 16th. Me 
Mean Diurnal Range... ; . fae 
Mean in the Shade POR ; * 
(Being 1°11 tien wnat ae eh énith an averayze of the preceding 92 years.) j 
Mesos oe A gles Amount .. 98:0 on ae Lith. yin A 
Least ee ere e 14th, ; = 
. Mean ae bee ee a 
fe (Being: 1-2 greater than that of the same month on an average of the aN 22 years) ke, 
Number of Days... ,... 14 rain and 12 dew. cae 
est Fall one a 298 Seabee’ on the 11th. ee 
, 65 feet above ground. 
pe nd eS nd 868) aan above ground. 
1 e Soe eae Pe +h , oe of the mente “4 
; fe 
ideal & gic AER inches. Eat lel 
Number of Dupin 3 
Mean Amount... PHOS Sey es 
_ Number of Clear Days’. Prue tsk: sirable acl eas 
| Number observed 4 
