34 Dr Heiiiek Clip's Meteorological Journal kept at Fnnchal. 



These are a few of the facts from which I have ventured to 

 deduce this principle. My attention having been drawn to it 

 many years ago, I have taken every opportunity that has oc- 

 curred since, to put it to the test of accurate and impartial ob- 

 servation, and can say with the greatest sincerity, that I have 

 not met with a single fact which leads me to entertain any set- 

 tled doubt of its universality. Sir Isaac Newton proposes as 

 a rule of reasonings that *' in experimental philosophy we are 

 to look upon propositions collected by general induction from 

 phenomena, as accurately or very nearly true, notwithstanding 

 any contrary hypotheses that may be imagined, till such 

 time as other phenomena occur, by which they may either 

 be made more accurate, or liable to exceptions." Under the 

 protection of this rule, the principle just announced appears 

 to me to stand. And, as it will be of the highest importance 

 both to the moralist and physician, iftrue^ I humbly hope 

 that the obscurity of the individual who happens first to propose 

 it to your notice, will be no obstacle in the way of your due 

 examination of it. 



Art. IV. — Abstract of' a Meteorological Journal kept at Fun- 

 chal in the Island of Madeira^ from January ^st to Decem- 

 ber Slst, 1828. By C. Heineken, M. D. Communicated 

 by the Author. 



jANUARir. 



Pressure. Corrected for Temp. Temperature. 



Max. 30.48 66°= 30.394 Max. 70° 

 Min. 30.02 66 = 29.935 Min. 52 



Mean 30.22 65 = 30.135 Mean 62.1 



Diurnal range of thermometer, max. 18° ; min. 7° ; mean 12.5" 

 Jiain, 4.08 in. No. 1. ; Dew Point, max. 65 : min. 50; Dry- 

 ness, max. 16, min. 1. 



Winds, N. 2 ; N. E. 9 ; E. 1 ; S. E. 2; S. 2 ; S. W. 5 ; 

 W. 10;=3L 



The thick hazy weather with heavy surf from the south, 

 and the continuance of south winds without rain, were very 

 unusual concomitants. 



