METEOROLOGY. 325 



aOVERNMENT OBSERVATORY, SYDNEY. 

 Latitude 33° 51' 41" ; Longitude 10^ 4"> 46" ; Magnetic Variation 9° 32' 45" East. 



SEPTEMBEE, 1876.— aETfEEAL Aesteact. 



Barometer ... Highest Reading 30-174 inches on the 23rd, 



At32°raht. Lowest Reading 29-082 „ on the 14th. 



Mean Height ... ' ... 29-828 

 , (Being 0061 less than that in the same month on an average of the preceding 17 years.) 



Wind ••• Grreatest Pressure... ... 117-0 lbs. on the 10th. 



Mean Pressure ... ... 1*3 lb. 



Number of Days Calm ... 

 Prevailing Direction ... W.IST.W. 

 (Prevailing direction during the same month for the preceding 17 years W. ) 



Temperature Highest in the Shade ... 81-3 On the 21st. 



Lowest in the Shade ... 43-4 On the 13th. 



G-reatest Range 28-9 On the 19th. 



Highest in the Sun ...117-8 On the 19th. 



Highest in Black Box with ) i no k r\ i.i t n^u 

 §,, m \ 188-5 On the 19th. 



Lowest on the (3rrass ... 40-1 On the l7th. 

 Mean Diurnal Range ... 14-6 

 Mean in the Shade ... 59-2 



(Being 0"7 greater than that of the same month on an average of the preceding 17 years.) 



Humidity ... Greatest Amount... ... 98-0 On" the 29th. 



Least 35-0 On the l&t. 



Mean 70-3 



(Being 1 -5 greater than that of the same month on an average of the preceding 17 years, ) 



Rain... ••• Number of Days ... ... 11 rain and 3 dew, 



Greatest Fall 1-967 inches. On the 11th. 



rp i. 1 -ri ]i ( 1'993 inches. 65 ft. above ground. 



"■( 3-505 inches. 15 in. above ground. 

 (Being 1 -279 inches greater than that of the same month on an average of the preceding 17 years. ) 



Evaporation Total Amount 4*903 inches. 



Ozone ••• Mean Amount ... ... 7*6 



(Being 2*4 greater than that in the same month on an average of the preceding 16 years.) 



Electricity ••• Number of Days Lightning 4 



Cloudy Sky... Mean Amount 5*0 



Number of Clear Days ..,2 



Meteors ••• Number Observed ... 1 



Semarlcs. 



The dry weather continued until tlie 10th instant, when a very severe storm of 

 wind and rain came from the southward along the coast, and inland from the south 

 as far as the Lachlan River. The interior to north of this is still suffering severely 

 from drought, 



2 H 



