;V_> MESSUS. AV. Ell AW AND A\'. II. DINES; METEOliOLO(4ICAL (jBSEin'ATIONS 
July 3!^^ '^UGI2.- 
Full linos represent the relation lietween temperature and height. 
Dotted „ „ „ humidity and height. 
Arrows indicate whether the kite was rising or siidcing. 
—-No importance is attached to the large Variations of temperature at the commencement 
of the ascent of July 31, which may have keen due to accidental causes. 
Uesvlts of the Ohservation^. 
The final re.snlts obtained for temperature are plotted on a diagram (Tlate I’d), and 
where ascents were obtained on consecutive days the heights of corresponding 
tempeiutnres are joined by full lines. As a guide to the eye, dotted lines have been 
added to connect lines of corresponding temperature. The state of the air as regards 
humidity at the different levels is represented by the letters A .1)., IK, M., and S. 
respectively with the meanings already given. When tlie letters have not been 
inserted, the humidity trace has failed. 
lluring the course of the ascents notes were made of the disappearance of the 
kite in clouds and of its reappearance. From these observations the heights of the 
cloud layers were determined. The position of the first visible cloud layer thus 
indicated is shovui on the diagram, and varies between 450 metres on July 8 and 
2000 metres August 25 ; two cloud layers were identified in this way on August 1. 
The determination of the heights of clouds by this method is not altogether free 
from uncertainty when detached clouds are drifting across the sky. Jhe kite may 
lieconie invisible, although it is not itself in cloud, because a cloud drifts under it. 
