TRANSACTIONS OF THE SECTIONS. 19 



Lancashire and Yorkshire. I therefore conceive that the nucleus of the 

 hurricane passed in a N.E. direction over these two counties. Towards 

 the sides, however, a little current set in a S. and even slightly in a S.E. 

 direction, on the S. side of the vortex, and in a N.W. and westerly di- 

 rection on the N. side, as before stated ; but the main rush was behind. 

 The anemometer at Birmingham shows that we here first felt a fresh 

 S. wind with a slight bearing of E. in it, which very shortly became 

 more westerly, increasing considerably in violence, and it then moved 

 round to the S.W., and became quite a hurricane, and continued so, 

 very violent at first, but decreasing in strength during the remainder 

 of the day : at Plymouth it commenced as a S.W. and then very gra- 

 dually moved round a little more westward. It was by careful exami- 

 nation of the records of these two instruments that I arrived at the 

 view I ventured to take of this storm ; and the evidence that I have 

 collected from various parts of the country concerning it, strongly con- 

 firms me in the opinion I have taken of it. Many violent storms fol- 

 lowed in the wake of this extraordinary hurricane, but I have not 

 attempted to investigate these, as the main storm must have thrown 

 the atmosphere into so disturbed a state, that it would be very likely to 

 produce minor eddies, gusts, &c. 



On the Temperature of the Earth in the deep Mines of Lancashire and 

 Cheshire. By Mr. Eaton Hodgkinson. 



These experiments were made with thermometers belonging to the 

 Association, and in the prosecution of them the author has been very 

 greatly assisted by the proprietors of pits and others connected with 

 them, who have kindly undertaken to observe the results themselves — 

 thus saving the author the trouble, in some cases, of going more than 

 once into the mine. In the salt mines of Messrs. Worthington and 

 Firth, at Northwich, in Cheshire, latitude about 53° 15', a thermometer 

 placed in a bore-hole 3 feet deep in the rock, 112 yards below the 

 surface, indicated a temperature of 5P to 51^° Fahr., and varied little 

 or nothing between summer and winter. In the deep coal-mines of 

 Messrs. Leeses, Jones, and Booth, near Oldham, a thermometer, placed 

 in a bore-hole as before, 3294- yards below the surface, varied from 57° 

 to 58^° Fahr., from observations made for a whole year by Mr. J. Swain. 

 In the Hay dock colliery, 201 yards deep, about 18 miles west of Man- 

 chester, and differing from it but little in latitude, the temperature 

 varied considerably, both in the same hole and in different ones, but 

 approached to 58". The cause of these anomalies the author has not 

 discovered. The experiments were made for him by Mr. William 

 Fort. Other experiments are in progress. The latitude of Manchester 

 is 53° 30', and the mean temperature of the air there is 48° Fahr., from 

 Dr. Dalton's experiments. 



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