wT —— 
—————— SC 
ON THE INVESTIGATION OF THE UPPER ATMOSPHERE. MED! 
disturbance having its centre near Limerick on three of the four days 
A brief summary of the results obtained is given in the accompanying 
table. 
The results of ascents at Barbadoes have been discussed in a paper 
by Mr. J. S. Dines, read before the Royal Meteorological Society. 
Mr. Taylor, who returned at the end of August, reports that owing 
to continued unfavourable weather and other conditions no ascents of 
registering balloons could be undertaken with any prospect of regaining 
the balloon and instrument. He succeeded, however, in obtaining a 
valuable set of kite observations, especially on occasions of fog, and a 
report on these will appear in due course. 
In view of the possibility of a further opportunity of investigation 
over the ocean next spring, the Committee ask for reappointment with 
a grant of 251. 
Summary of Registering Balloon Ascents at Limerick, July 1912 to July 1913. 
—— <a 
| | 
Place of Fall | 1 Character of 
| | 7 | eels ben Gra- | Gra- Approxi-'  Guryature of 
| Maxi- | dient | dient | mate Isob 
Date Time | mum ona Haclnen liceecpaeltqys Pressure], -S02275) 
i : a8 ace tt Velo- | Direc- , (a=anticyclonic, | 
} Height} Dist- Direc- (GSI ve at Sea ay 2 2 
| ance | tion | H y | Uuon Level c=cyclonic, 
| | s=straight) 
| | | | Eee Pees My | 
1912 a.m. | km. | km. a km. | °A. m/s. ° mm. | 
ey 6 26° 2) 7.15 15 55 320 10.2} 221 | ? ? | 765 | No gradient 
» 31. .| 7.15 | 14.8 | 107 56 9.0 | 227 12 155 ct) c 
October4 .| 7.0 | 15.7] 88 | 160 * | # 13¢ | 225+ | 777 | a 
November 7.| 7.15 | 14.1 | 131 | 82 | 11.9/ 208 | 15 | 220 | 768 | 8 
| | 
i913. | | 
January 3 7.15 | 9.8 27 85 9.0 | 225 Il | 225 | 752 s 
ay 5 | 7.0 11.3 | 60 | 130 9.4 | 217 OFA A 756 | Irregular 
» 6 | 7.12 | 14.9 12 30 8.2 | 225 3 | 330 750 | ce 
 e Gate Pe 32 355 7.8 | 223 | 17 | 350 | 743 | c 
By 9 7.13 14.2 56 327 7.3 | 222 | 13. | 130 | 744 4 c 
July 3 TAT | 15.3 66 192 T9207 |e, | Cel 720 | a 
== we 
* The temperature gradient above 9 km. is so irregular that no definite value can be assigned 
t Gradient at6p.m. At7 a.m. the station was in the central calm area of an anticyclone 
Radiotelegraphic Investigations.—Report of the Committee, con- 
sisting of Sir OLIVER LopGE (Chairman), Dr. W. H. Eccizs 
(Secretary), Mr. StipNEY G. Brown, Dr. ERSKINE Murray, 
Professors J. A. FuemMinc, G. W. O. Howe, and H. M. 
MAcponaLD, Captain H. Riaun SanKey, and Professor Sit- 
VANUS THOMPSON. 
At a meeting held on June 13, 1913, the Committee came to the 
conclusion that the most urgent and most profitable work they could 
promote was the investigation of the following large-scale phenomena :— 
1. The influence of sunrise and sunset, of daylight and dark- 
ness, and of meteorological conditions, on the propagation of 
electric waves over long distances ; 
2. The origin and the laws of ‘ strays ’-—i.e., natural electric 
waves. 
K 2 
