XXXIV REPORT—1852. 
That it ‘is important that Professor W, Thomson and Mr. J. P. Joule be 
enabled to make a series of experiments, on a large scale, on the thermal 
effects experienced by air in rushing through small apertures ; and that a 
representation to this effect be made to the Royal Society. 
That the Government be requested, on the part of the British Association, 
to connect with the survey of the Gulf-stream an examination of the Zoology 
and Botany of that current; and also of the temperature of the sea round 
the shores of the British Islands. 
The Committee having been informed that an expedition has been pro- 
posed for ascending the Niger to its source, by Lieut. Lyons Macleod, R.N. ; 
and that it has been recommended to Her Majesty’s Government by the Royal 
Geographical Society and the Chamber of Commerce of Manchester, resolve 
that the President be requested to concur with the President of the Royal 
Geographical Society in bringing the subject before the Government. 
The Committee having understood that Dr. Bakie, Mr. A. Adams and Mr. 
W. T. Alexander, each of them in the medical branch of Her Majesty’s Navy, 
have proposed to undertake a thorough exploration of the countries watered 
by the river Magdalena in South America, in respect to their botanical, 
zoological, and geological products, on the condition of being allowed their 
full pay, request the President of the Association and Sir R. I, Murchison 
to urge the Government to accede to this proposition. 
The Committee being aware of the liberality with which the Master- 
General and Board of Ordnance have supplied the several engineer stations 
with instruments for meteorological observations, would suggest the advan- 
tage of adding to their instruments, in the Ionian Islands, others for measu- 
ring the direction and amount of earthquake vibrations, so frequent in these 
islands. 
That a systematic collection of the Agricultural Statistics of Great Britain, 
of asimilar nature with the returns of the agricultural produce of Ireland, 
prepared under the care of Major Larcom, R.E., is a desideratum, and would 
be of great public utility; and that the President, Mr, Heywood, Major 
Lareom and Col. Sykes, be requested to communicate the above resolution 
to Her Majesty’s Government. 
That a Committee, consisting of Rev. Dr. Robinson, Prof. C. P, Smyth, 
W. Fairbairn, Esq., W. J. M. Rankine, Esq., C.E., and W. 8S. Ward, Esq., 
be requested to take into consideration the methods of cooling air for the 
ventilation of buildings in tropical climates by mechanical processes, and 
should they see fit to prepare a memorial in the name of the British Asso- 
ciation to the Hon. the East India Company, representing the.advantage of 
‘making a trial of a process of that kind on a large seale, e.g. in a hospital. 
Not involving Grants of Money or Application to Goveraiment, se. 
That the thanks of the British Association be given to the Smithsonian- 
Institution for the communication of Charts illustrating the plan adopted by 
that Institution for deducing the general facts of the Meteorology of North 
America, bearing on the laws of the great North American Storms; and 
that it be referred to the Council to consider what steps it may be advisable 
to take for the purpose of extending the system of observations over the 
British portion of North America. 
That the thanks of the British Association be given to Prof. Doye for his 
valuable communication respecting the lines of abnormal temperature on the 
globe; and that it be referred to the Council to consider of the expediency 
of procuring copies of the map of the abnormal temperatures in different 
months of the year, for the supply of members of the Association. 

