﻿REMARKS. 



IN the following Diary of the Weather, begun the 

 ist of February 1784, every change in the air was 

 marked down with the greatest precision three times 

 every day, and always nearly at the same hours, viz. 

 at sun-rifing at three, or half past three o'clock in the 

 afternoon, and at eleven o'clock at night. 



While the wind continued southerly, the Thermo- 

 meter was placed in a Verandah open to the Esplanade, 

 where there was at all times a free circulation of air ; 

 and when the wind became northerly, the instrument 

 was removed to the opposite side of the house, and 

 equally exposed, as in the preceding part of the year. 



The Barometer continued always in the same 

 place. 



The Hygrometer made use of, was a bit of fine 

 sponge, suspended in a scale (on the end of a steel- 

 yard) first prepared for more easily imbibing the 

 moisture, by dipping it in a solution of Salt of Tar- 

 tar, afterwards drying it well, and bringing it to an 

 equilibrium by a weight in the opposite scale, at a 

 time when the atmosphere appeared to have the 

 least degree of moisture. 



A semicircular scale at the top, divided from o to 

 90 on each side, with the needle of the yard, pointed 

 out the quantity of moisture gained or lost daily ^ 

 but in the following Diary ihe degrees of moisture 

 have seldom been taken down. 

 E e a 



