7S Meteorologkal Ohservailons 



of the mass the form of alternate bars. Wind easterly, witii 

 cool breeze, and cloudiness towards midnight. Thermometer 

 midday 73° j midnight 51°. Barometer falling 30*20. 



July 2. — There was a cool NE wind, and cloudy sky in the 

 morning; the edges of the clouds in general were not well de- 

 fined* ; the day became warmer ; in the evening cumulus, rocky 

 appearance, &;c. ; features of cumulus, and large low cirri con- 

 densing with copper-coloured and afterwards crimson colours in 

 their under parts. The colour of the western horizon pale yel- 

 low. At 11 P.M. Thermometer 4 S°. Barometer 30-15. ';Sky 

 clouded. There was a whirlwind about four to-day. 

 - July 3. — Cool easterly wind, and cloudiness early ; sun at in- 

 tervals through the dav. The clouds were ill-defuicd in their 

 edges in general. Clear cool night. At midnight Thermometer 

 45°. Barometer 30- 11. 



July 4. — A great deal of cumulos trains obscured the sky : 

 very sHght nimbification took place about two o'clock. The 

 wind was gentle, and the weathercock indicated a southern di- 

 rection. The quantity of cloud continued; some lofty and 

 large cirrocnvmlus in the evening. Thermometer at midday 63 \ 

 at 11 P.M. 54". Barometer 30-12. 



July i. — Clear morning ; cumuli formed, and in the after- 

 noon obscured the sky almost. Fair evening, with lofty clouds 

 with the cirrocumulative arrangement. Thermometer midday 

 74°, at 11 P.M. 53». Barometer 30-18. Wind gentle and 

 northerly. 



July 6. — The day was fair and warm, but there were light 

 irregular gales from the north and east with cumuli below, and 

 much cirncs, whose fibres were assuming horizontality, above in 

 a higher air ; forms of cirrocumidus too occasionally broke out. 

 Towards evening the subsidence everywhere of the fibres of cirrus 

 into the denser and more horizontal cirrostratus foreboded the 

 gentle rain which came down at night. At 11 P.M. while 

 raining. Thermometer 54°. Barometer 30"04. 



* I am now convinced by repeated observation, that nervous and sus- 

 ccjitible persons who arc mucli iiitluenctd in llieir feeliiius by the atino- 

 splicrc, arc in general worse when the clouds are characterized by an inc'e- 

 finite and confused margin. There are probably many varieties in the 

 electric state of the air (not discoverable, by our present instruments) which 

 act on the constitutions ot' different individuals, and produce irritation ; 

 nnd the periodicity noticed in many disorders by physicians of old, and the 

 periodical affection of the health of persons in general noticed by Dr. 

 Spurzheim, must, I think, be referred to the atinospherio electricity. But 

 we cannot ahva- s detect even in the clouds marks o(" its uiiwliolesoine 

 states, 'i here is, however, usually a very uncomfortable feeling when the 

 clouds liave ill-deiincd edges, tiieir circumscriptions not beiii^ distinctly 

 marked, but wiien ihey are confuied with the surrounding atmosphere. 



July 



