Dr Heineken's Meteorological Journal hept at Funchal 73 



Art. ym,'^ Abstract of a Meteorological Journal kept at 

 Funchal, in the island of Madeira, from January \st to 

 December Slst, 1827.* By C. Heineken, M. D. Com- 

 municated by the Author. 



The barometer is one of Newman'*s mountain instruments, 

 with an iron cistern into which its thermometer plunges. It 

 hangs within doors at a window with a south aspect, fifteen 

 feet from the ground, and eighty-nine above the level of the 

 sea. The Hygrometer is DaniePs, used at the same win- 

 dow, but kept in a dry cupboard within the room. The maooi- 

 mum thermometer is one of Newman's horizontal instruments. 

 It hangs in an open passage which runs through the house, 

 and has a room over it, is removed from all artificial draught, 

 ai?d quite uninfluenced by the sun either directly or by reflec- 

 tion. The minimum one is by Dollond. It hangs against a 

 wall with a north aspect, and is sheltered from rain. They 

 are both at the same height as the barometer. The sun ob- 

 servations are made on a black bulb horizontal thermometer 

 by Newman, three feet from the earth, and 280 above the level 

 of the sea. Rain-gage No. 1. is on the roof of a house, 

 twenty-five feet from the ground, and ninety-nine above the 

 sea. No. 2. is in the same situation as the sun thermometer, 

 and on the ground. 



1827. 

 January. 

 Pressure. (Inches.) Corrected for temp. Temperature. 

 Max. 30.480 61° = 30.400 Max. 66° 

 Min. 29.790 62 = 29.718 Min. 51 

 Mean 30.203 64 = 30.118 Mean 58.9 



Diurnal range, max. 12® ; min. 5° ; mean 9*. 



Rain, 2.86 in. No. 1 ; Dew Point, max. 64 ; min. 46 ; Dry- 

 ness, max. 21, min. 



IFintZ^, N. 3 ; N. E. 10 ; E.2; S. E. 6; S. 2 ; W. 6 ; 

 N.W. 2;=31. 



• Two observations (10 a. m. and 10 p. m.) are made on the barometer, 

 and one (10 a. m.) on the hygrometer daihj' 



