DESIDERATA, ETC. 
XIX 
ent depths, in different kinds of soil and in different parts of 
the earth, are requested to make known their names and the 
places where they have this opportunity, to the Secretary of the 
Meteorological Committee*. 
7 a. That the Meteorological Committee be requested to give 
instructions, and to make arrangements on the subjects of the 
Experiments recommended in the above resolution, and that 
100/. be placed at their disposal. 
8. That the Committee be further requested to draw up an 
account of the best form of Meteorological instruments ; —to 
prepare standard instruments, both as a means of comparison 
and of construction of similar instruments, for those Members 
of the Association who may wish to purchase Instruments con¬ 
structed by these standards;—to draw up Forms, Register Ta¬ 
bles and Abstracts, with directions for the best times, places, 
and methods of observing and registering;—and that a further 
sum of 100/. be placed at their disposal, for the above purpose 
and others connected with the advancement of Meteorology. 
That series of comparative experiments should be made on 
the temperature of the dew-point, and the indications of the 
wet-bulb Hygrometer, and that the theory of this instrument 
should be further investigated f. 
9. That instructions for observing Auroral Phenomena and 
Falling Stars be drawn up, with a view to the procurement of 
corresponding observations in every part of the kingdom 
Desiderata noticed in Prof. Forbes’’s Deport. 
Verification of Mr. Dalton’s theory of the constitution of the 
atmosphere, by direct experiment. ( Reports , vol. i. p„ 206. and 
Phil. Trans. 1826.) 
Experiments in various latitudes upon the temperature of the 
earth at moderate depths, by means of thermometers with long 
tubes ; with a view to determine the position of the 6e invariable 
stratum,” where external causes cease to produce any effect. 
(. Reports , vol. i. p. 221.) 
Experiments on the solar and terrestrial radiation. (Reports, 
vol. i. p. 222.) 
* The members of the Committee are Dr. Apjohn, Prof. Forbes, Mr. W. S. 
Harris, Mr. J. Hudson, Professor Phillips, Professor Powell, Colonel Sykes, 
Mr. John Taylor (Secretary). The Committee has had instruments constructed 
suitable for experiments on temperature in mines, &e., and some of them are 
now in use at selected points. 
f For an investigation of the theory of this instrument, see Dr. Apjohn ’s 
paper, and Dr. Hudson’s remarks in Phil. Mag., 1835-6. 
+ An abstract of the directions which have been drawn up by the Committee 
is given page xxxv. 
