In PERTHSHIRE. 279 



eight feet in depth at the middle, and 1200 feet in breadth, until nine o'clock 

 in the morning of the 23d, when it had advanced 600 feet, and covered twelve 

 acres of ground that had been cleared. It would undoubtedly have flowed much 

 farther, had not a great number of men been employed night and day, in giving 

 vent to the water mixed with the mofs that had flowed, and in intercepting that 

 which continued to difcharge itfelf from the main body of mofs. 



END OF PAPERS OF THE PHXS1CAL CLASS. 



