RESEARCHES IN SCIENCE. XIx 
trial Magnetic Force in Scotland, by Major Edward Sabine, 
R.A., F.R.S., &c. 
Comparative view of the more remarkable Plants which cha- 
racterize the Neighbourhood of Dublin, the Neighbourhood of 
Edinburgh, and the South-west of Scotland, &c.; drawn up for 
the British Association by J.T. Mackay, M.R.LA., A.L.S., 
&c., assisted by Robert Graham, Esq., M.D., Professor of 
Botany in the University of Edinburgh. 
Report of the London Sub-Committee of the Medical Section 
of the British Association on the Motions and Sounds of the 
Heart. 
Second Report of the Dublin Sub-Committee on the Motions 
and Sounds of the Heart. 
Report of the Dublin Committee on the Pathology of the 
Brain and Nervous System. 
Account of the Recent Discussions of Observations of the 
Tides which have been obtained by means of the grant of money 
which was placed at the disposal of the Author for that purpose 
at the last Meeting of the Association, by J. W. Lubbock, Esq. 
Observations for determining the Refractive Indices for the 
Standard Rays of the Solar Spectrum in various media, by the 
Rev. Baden Powell, M.A., F.R.S., Savilian Professor of Geo- 
metry in the University of Oxford. 
Provisional Report on the Communication between the Arte- 
ries and Absorbents, on the part of the London Committee, by 
Dr. Hodgkin. 
Report of Experiments on Subterranean Temperature, under 
the direction of a Committee, consisting of Professor Forbes, 
Mr. W.S. Harris, Professor Powell, Lieut.-Colonel Sykes, and 
Professor Phillips (Reporter). 
Inquiry into the validity of a method recently proposed by 
George B. Jerrard, Esq., for Transforming and Resolving 
Equations of Elevated Degrees; undertaken, at the request of 
the Association, by Professor Sir W. R. Hamilton. 
1837. 
Account of the Discussions of Observations of the Tides 
- which have been obtained by means of the grant of money which 
was placed at the disposal of the Author for that purpose at the 
last Meeting of the Association, by J. W. Lubbock, Esq., 
E.R.S. ; 
On the difference between the Composition of Cast Iron 
produced by the Cold and the Hot Blast, by Thomas 
Thomson, M.D., F.R.SS. L. & E., &c., Professor of Chemistry, 
Glasgow. 
On the Determination of the Constant of Nutation by the 
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