324 METEOROLOGICAL REPORT, 1870, 



Wylam. — A very fine month. 



Thermometer — Mean of daily minimum, 44*49° ; lowest, 33° 

 on the 15th. Mean of daily maximum, 65 - 73° ; highest, 73° on 

 the 27th. Mean of minimum and maximum, 55"11°. The wet 

 and dry bulb thermometers were accidentally broken. 



Rainfall on eleven days, viz., 1*07 inches; greatest fall, - 30 

 inch on the 3rd. 



Mean height of river, 1-8 feet. Wind— W., 11° S. 



Acklam, near Middlesbro'. — During the first few days of Sep- 

 tember the weather was variable. From the middle of the month 

 sharp frosty mornings and bright sunny days prevailed. There 

 were two unusually fine displays of the Aurora Borealis at the 

 end of the month. 



Seaham. — This month was remarkable on account of the pe- 

 culiar changes of the wind. Almost daily the wind has changed 

 about noon to the east, which made the after part of the day 

 cold. 



Lunar Halos were seen at Wallington on the 10th and 11th ; 

 at Sunderland on the 12th. Solar Halos were seen at Walling- 

 ton on the 10th and 14th ; at Sunderland on the 2nd, 3rd, 4th, 

 6th, 13th, and 20th. Aurora Boreales were seen at Walling- 

 ton on the 4th, 24th, and 25th; at Alnwick on the 24th and 

 25th ; at Cresswell on the 24th ; at Whitley on the 3rd, 23rd, 

 and 24th ; at North Shields on the 3rd, 24th, and 25th ; at Gain- 

 ford on the 24th and 25th ; at Sedgefield on the 24th and 25th ; 

 at Sunderland on the 13th, 24th, and 25th ; at Greta Bridge on 

 the 23rd ; at Darlington on the 24th ; at Newcastle-on-Tyne on 

 the 3rd, 7th, and 11th ; at Durham on the 3rd, 15th, 24th, and 

 25th. Thunder was heard, but Lightning was not seen, at 

 Sunderland and Allenheads on the 6th. Thunderstorms oc- 

 curred at Wallington, Alnwick, and Cresswell on the 6th; at 

 Whitley on the 6th and 13th. 



The usual table showing the death-rate for the largest towns 

 in Northumberland and Durham is subjoined : — 



Estimated Persons Annual rate to 



Population. to an acre. Deaths. 1000 living. 



Newcastle-on-Tyne 133,367 25-0 853 25-6 



Sunderland 100,979 30'5 505 20*0 



