326 METEOEOLOGT. 



GOYERNMENT OBSERVATORY, SYD]S"EY. 



Latitude 33° 51' 41" ; LoxsircrDE lOh 4™ 46^ ; JIagxetic Variation 9° 32' 45" East. 



OCTOBEE, 1876.— G-ENEEAL Absteact. 



Barometer... Highest Reading... ... 30'004 inches on the 3rd. 



At32°Faht. Lowest Reading 29-386 „ on the 20th. 



Mean Height 29-721 



(Being' 120 greater than that in the same month on an average of the preceding 17 years. ) 



Wind ••• Greatest Pressure ... 12'5 lbs. on the 6th. 



Mean Pressure ... ... 0-7 lb. 



Number of Days Calm ... 

 Prevailing Direction . . . W.N.W. 

 (Prevailing direction during the same month for the preceding 17 years, N.E.) 



Temperature Highest in the Shade ... 82-1 On the 23rd. 



Lowest in the Shade ... 48"2 On the 3rd. 



G-reatest Range 242 On the 17th. 



Highest in the Sun ... 121-9 On the 23rd. 



HighestinBlack Box-with > 203-4 On the 23rd. 

 U-lass lop ... ... 3 



Lowest on the Grass ... 40-1 On the 1st. 



Mean Diurnal Range . . . 14-6 



Mean in the Shade ... 63'1 

 (Being 5 less than that of the same month on an average of the preceding 17 years.) 



Humidity ••• Greatest Amount... ... 97*0 On the 4th. 



Least 37-0 On the 12th. 



Mean 73-7 



(Being 5*5 greater than that of the same month on an average of the preceding 17 years.) 



Rain... ... Number of Days... ... 14 



Greatest Fall 0*840 inch. On the 8th. 



Total Fall ( ■'""^^^ " ^^ ^^' ^^°"^® ground. 



'" \ 2-841 inches. 15 in. above ground. 



(Being 316 greater than that of the same month on an average of the preceding 17 years.) 



Evaporation Total Amount 5-155 inches. 



Ozone ... Mean Amount 6*0 



(Being 0*7 than that in the same month on an average of the preceding 16 years.) 



Electricity... Number of Days Lightning 13 



Cloudy Sky.. Mean Amount 5*0 



Number of Clear Days ... 



Meteors ... Number Observed ... 3 



Semarks. 



Nice rains feU along the coast about the middle of the month. Inland the 

 •weather has been dry, and a remarkable phenomenon has occurred with regard to 

 cattle and horses ; those with white patches, or all white, have been attacked by a 

 kind of aphis and all the white hair removed, aphis has also been very prevalent on 

 vegetables. 



