of the Atmosphere. 459 



1843, June 15.— See Phil. Mag. vol. xxx. p. 169. 



1843, June 16. — Baroin. 30 in. Sky covered with white ne- 

 bulosity. 



Apparent time. 



h m Arago. 



12 20 R=25i° max. polarization in zenith plane. , 

 7 0.. .. .. .. 10 45 



7 38 17 50 



Babinet. 



7 41 R=2°4° max. pol. in zenith plane. 15 55 

 1843, June 21.— See Phil. Mag. vol. xxx. pp. 126, 165. 

 1843, June 22.— Barom. 29*90 in. Wind east; fine day. 



Arago. 



8 42 Antisolar point in horizon. Clouds in zen. 19 15 

 1843, June 23.— Barom. 29*92 in. Fine day. 



7 17 R=25° max. pol. in zenith, 18£° in hor. 15 35 



7 26 .. .. .. .. 17 30 



8 58 . . . . . . . . 18 30 



Babinet. 



7 30 . . . . . . . . 15 10 



9 R=27|° max. pol. in zenith, 22° in hor. 16 50 



1843, June 24.— Barom. 29*92 in. 



Arago. 



7 8 .. ■ .. • .. • .. • 17 47 



1843, June 26. 



7 25 ,. ,. .. .. 21 6 



o „ j Neutral point in the middle of a bright I ■, » o«> 



\ orange cloud . . . . j 



1843, July 3. — Barom. 29*57 in., rising. 



7 29 R=26° max. pol. in zenith, 20|° in S. hor. 16 28 



1843, July 6. 



6 50 R=28^° max. pol. in zenith, 22^° in hor. 11 45 



7 1 .. .. " .. •• 14 15 



7 21 R= 18*° polarization of moon .. 17 32 



8 13 R=29° max. pol. in zenith plane. 19 30 

 8 55 ., .. .. .. 18 15 



Babinet. 



7 25 13 40 



8 15 R=28^° polarization of moon . . 16 3 

 8 52 .. 17 11 



Arago. 



1843, July 11. — Barom. 30 in., rising. 



6 55 R=29i°, max. pol. in zenith; clear sky. 12 28 



7 51 White clouds forming in many places. 21 11! 



Babinet. 



7 54 . . . . . . . . 19 10 



1843, July 21. — Barom. 29*5 ; no rain. 



Arago. 



7 34 Thin clouds in zenith and near sun, 20 4 



