1818.] Scientific Intelligence. 463 



sidered as the cause of the occasional unwholesomeness of their 

 flesh ; and Dr. Dickson is, upon the whole, inclined to adopt 

 this opinion. 



Article XVIII. 



SCIENTIFIC INTELLIGENCE, AND NOTICES OF SUBJECTS 

 CONNECTED WITH SCIENCE. 



I. Meteorological Register kept at New Malt on, in Yorkshire. 



January. — Mean pressure of barometer, 29*463; max. 30*25- 

 min. 28-65; range, 1-60; spaces described, 12-50 inches; num- 

 ber of changes, 24. Mean temperature, 34-200° ; max. 53° • 

 min. 25° ; range, 28°. Amount of rain and snow, 4*36 inches. 

 Wet days, 14 ; snowy, 5. Prevailing winds, W. and S W • 

 E. 2 ; S'.E. 1 ; S. 5 ; S.W. 12 ; W. 10 ; Var. 1. Brisk winds, 8 ; 

 boisterous, 8. Character of the period : wet, stormy, and 

 changeable, with frequent heavy falls of snow and high winds, 

 particularly by night, and the barometrical column in continual 

 fluctuation. 



February. — Mean pressure of barometer, 29*453 ; max. 30*18 • 

 min. 28*67 ; range, 1*51 ; spaces described, 7*90 inches; number 

 of changes, 17. Mean temperature, 34-41 ; max. 50° ; min. 23°; 

 range, 27°. Amount of rain and snow, 2*27 inches. Wet 

 days, 7 ; snowy, 4. Prevailing winds, S. and S.W. ; S.E. 2 ; 

 S. 7; S.W. 15; W. 4. Brisk winds, 4; boisterous, 5. Cha- 

 racter of the period : the first fourteen days cold, fair, and calm, 

 with frequent hoar frosts ; afterwards wet, stormy, and change- 

 able, with strong gales, and much rain and snow by night. 



March. — Mean pressure of barometer, 29*265 ; max. 30*36 ; 

 min. 27*85 ! range, 2*51; spaces described, 12*50 inches; num- 

 ber of changes, 24. Mean temperature, 39*00; max. 57°; 

 min. 29° ; range, 28°. Amount of rain and snow, 5*00 inches. 

 Wet days, 13 ; snowy, 10 ; Haily, 1. Prevailing winds, W. and 

 S.W.; N. 4; N.E.I; S.E. 3 ; S. 3 ; S.W. 13; W. 6; N W. 1. 

 Brisk winds, 9 ; boisterous, 5. Character of the period : tem- 

 pestuous, with great falls of rain and snow. The tremendous 

 storm of wind, with rain and snow, during the night of the 4th, 

 caused a depression in the barometrical column in the course of 

 nine hours nearly an inch and a half, the minimum beinf noted 

 at one a.m. on the 5th; nor (with a single exception) did the 

 barometer ever indicate 29-00 until the 13th, when the wind 

 having veered from the S.E. by W. to N. there was a rapid 

 increase of T *Vths in a few hours. Abundance of snow fell during 

 the time the column was thus depressed, frequently mixed with 

 rain and hail. At one a.m. on the 25th, there was a loud clap 

 of thunder, which was succeeded bv the heaviest, fall of snow 



