xviii FIFTH REPORT —1835. 
1 a. That the sum of 501. be applied to meet the expenses of 
the observations which, in pursuance of this recommendation, 
have been carried on for three years and a half by the Wardens 
and inferior officers in Plymouth Dockyard, under the directions 
of Mr. W. S. Harris*. 
2. That a similar hourly register be recommended to be esta¬ 
blished under the superintendence of the Committee of the Asso¬ 
ciation in India. 
3. That the Committee in India be requested to institute such 
observations as may throw light on the horary oscillations of 
the Barometer near the equator. 
4. That Mr. Phillips, and Mr. William Gray, jun., be requested 
to undertake a series of observations on the comparative quan¬ 
tities of rain falling on the top of the great tower of York Minster, 
and on the ground near its base; and that similar observations 
be instituted at other places f. 
5. That persons travelling on mountains, or ascending in bal¬ 
loons, should observe the state of the Thermometer, and of the 
dew-point Hygrometer, below, in, and above, the clouds, and de¬ 
termine how the different kinds of clouds differ in these respects. 
6. That the decrease of Temperature at increasing heights in 
the atmosphere, should be investigated by continued observations 
at stated hours, and known heights. The hours of 9^ a.m., and 
p.m., as giving nearly the mean temperature of the year, are 
suggested for the purpose. 
7. That the temperature of Springs should be observed at 
different heights above the mean level of the sea, and at different 
depths below the surface of the earth, and compared with the 
mean temperature of the air and the ground J; and that notice 
be given that any persons who may be able to obtain the tem¬ 
perature of the air, water, and rock in mines and borings of 
known depth, or the indications of thermometers sunk to differ- 
* For the report of these observations, and those made under the direction 
of the late Mr. Harvey, see Reports , vol. iv. pp. 171 and 181. 
f The observations at York were made at three adjacent stations of known 
height, with gauges made on the same mould, and measured by one graduated 
glass vessel; they were continued from the 1st of February, 1832, to the 1st of 
February, 1835. From the results it has been inferred by Professor Phillips 
that the diminution in the quantity of rain at the higher stations has a certain 
constant dependence on the height of the station, and on the condition of the 
air as to temperature and moisture in the different periods of the year. For 
the further elucidation of this subject, it is desirable that experiments upon the 
same plan should be tried in other situations, and especially where the climate 
is of a different character from that of York ; in the humid atmosphere of Corn¬ 
wall, for example, and in the drier air of the midland counties. 
X The height of the springs may be determined with sufficient accuracy by a 
common portable barometer. 
