ON NINE BALLOON ASCENTS IN 1863 AND 1864. 



323 



Meteorological Observations made at different Stations in connexion with 



the Balloon Ascent on 



January 12, 1864. — Royal Observatory, Greenwich. 



Time of 

 'observation 



h m 



2 op.m 



2 15 .. 

 2 30 .. 



2 45 .. 

 30.. 



3 IS .. 

 3 30 .. 



3 45 .. 

 40.. 



4 15 .. 

 •4- 30 ,. 



4 45 .. 



5 ° .. 



Reading of 



Barom. 

 reduced 

 to 32° F. 



29-962 

 29-961 

 29961 

 29-964 

 29973 

 29-978 

 29-980 

 29-983 

 29-985 

 29986 

 29-986 

 29-989 

 29-998 



Thermom. 



Dry. 



407 

 40-1 



399 

 39-8 



397 

 39-1 

 38-6 

 386 

 386 

 38-6 

 38-3 

 38-2 

 38-7 



Wet. 



38-4 

 38-4 

 38-2 

 38-2 

 38-1 



37-7 

 37-2 



37"3 

 37-3 

 37-3 

 37-2 

 37-0 

 37-2 



Temp, 

 of the 

 dew- 

 point. 



35-8 

 36-2 



36-0 



36-1 



36-0 



35'9 

 35-4 

 35'6 

 35-6 

 35-6 

 35"2 

 3S'3 

 357 



Ten 

 sion of 

 va- 

 pour. 



-210 

 •214 

 -212 

 •213 

 ■212 

 -211 

 -207 

 •208 

 •208 

 -208 

 •205 

 •206 

 -Z09 



Degree 



of 

 humi- 

 dity. 



84 



86 



87 



87 



87 



89 

 89 



90 

 89 

 89 

 89 

 90 

 90 



Direc- 

 tion of 

 wind. 



S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 

 S.S.E. 



i = 



S o 



10 

 10 



10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 



a . 



3 1. 



2 c 



S ° 



< o 



Remarks, 



Overcast ; cirrostratus. 



April 6, 1864. 

 E.0YA1 Observatory, Greenwich. 



op.m, 

 15 .. 



30 



45 

 o 



15 



30 



3 45 



4 o 



4 JS 

 4 30 



4 45 



5 o 

 5 15 

 5 30 



5 45 



6 o 



N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 

 N.N.E. 



Overcast ; a few drops of 

 fine rain at 4'' 20">. 



June 13, 1864. 

 Royal Observatory, Greenwich. 



6 op.m. 



70,, 



7 15 >. 



7 30 „ 



7 45 .. 



8 o „ 



8 15 „ 

 8 30 „ 

 8 45 „ 

 90,, 



Sky cloudless, excepting a 

 small patch of cirrocumulus 

 in the N.E. 



Balloon seen at 7^ 7™ moving 

 due E. 



Cloudless. Balloon still ra- 

 pidly moving to the E., 

 veering in a slight degree 

 to the S. 



Cloudless. Balloon last seen 

 at 7'' 23". 



Cloudless. 



y2 



