4.68 TRANSACTIONS OF SECTION A. 
9. On the recent Balloon Ascents. 
By W. A. Harwoop and J. HE. Peravet, F.R.S. 
In connection with this investigation balloons carrying the new meteorograph 
devised by W. H. Dines, F.R.S., were sent up daily between July 22 and 27, 
1907, from five British stations, under the direction of the Meteorological Office 
and of the Joint Committee of the Royal Meteorological Society and the British 
Association. Out of the total number, twelve instruments have been recovered. 
The heights attained ranged up to about twenty kilometres. 
A brief account referring specially to the Manchester Station was given, and a 
diagram showing the variation of temperature with height as derived from two of 
the most successful records was exhibited. 
The curves showed an average temperature gradient of about 08 cent. per 
100 metres up to a height of nearly eight kilometres, and a substantially constant 
temperature above this level. The lowest temperature is in most cases 40° or 45°C, 
below zero. 
10. Report on Meteorological Observations on Ben Nevis. 
See Reports, p. 100. 
ll. Results of recent Researches on the Physics of the Earth. 
By Dr. T. J. J. Sen. 
12. Report on the Magnetic Observations at Falmouth Observatory. 
See Reports, p. 93. 
