PROFESSOR SIR WILLIAM THOMSON, M.A., LL.D.,
F.R.SS.L. & E......

EDINBURGH, August 2, 1871.

DR. W. B. CARPENTER, LL.D., F R.S., F.L.S.
BRIGHTON, August 14, 1872.

His Grace the Duke of Buccleuch, K.G., D.C.L., F.R.S.
The Right Hon. the Lord Provost of Edinburgh

The Right Hon. John Inglis, LL.D., Lord Justice-General of Scotland..
Sir Alexander Grant, Bart., M.A., Principal of the University of Edinburgh
Sir Roderick I. Murchison, Bart., K.C.B., G.C.St.S., D.C.L., F.R.S.....
Sir Charles Lyell, Bart., D.C.L., F.R.S., F.G.S.
Dr. Lyon Playfair, C.B., M.P., F.R.S.

Professor Christison, M.D., D.C.L., Pres. R.S.E.
Professor Balfour, F.R.SS.L. & E.

The Earl of Chichester, Lord-Lieutenant of the County of Sussex.
The Duke of Norfolk..

The Right Hon. the Duke of Richmond, K.G., P.C., D.C.L....
The Right Hon. the Duke of Devonshire, K.G., D.C.L., F.R.S.
Sir John Lubbock, Bart., M.P., F.R.S., F.L.S., F.G.S.
Dr. Sharpey, LL.D., Sec. R.S., F.L.S.

J. Prestwich, Esq., F.R.S., Pres. G.S....

The Right Hon. the Earl of Rosse, F.R.S., F.R.A.S...
Lord Houghton, D.C.L., F.R.S.

PROFESSOR ALEXANDER W. WILLIAMSON, LL.D., The Right Hon. W. E. Forster, M.P.
F.R.S., F.C.S...

BRADFORD, September 17, 1873.

The Mayor of Bradford..

J. P. Gassiot, Esq., D.C.L., F.R.S...
Professor Phillips, D.C.L., F.R.S.

Sir John Hawkshaw, F.R.S., F.G.S...

The Right Hon. the Earl of Enniskillen, D.C.L., F.R.S..

The Right Hon. the Earl of Rosse, F.R.S.

Sir Richard Wallace, Bart., M.P.

Rev. Dr. Henry..

Rev. Dr. Robinson, F.R.S.

Dr. Andrews, F.R.S.

Professor Stokes, D.C.L., F.R.S.

The Right Hon. the Earl of Ducie, F.R.S., F.G.S.

The Right Hon. Sir Stafford H. Northcote, Bart., C.B., M.P., F.R.S.
The Mayor of Bristol

Major-General Sir Henry C. Rawlinson, K.C.B., LL.D., F.R.S., F.R.G.S.
Dr. W. B. Carpenter, LL.D., F.R.S., F.L.S., F.G.S.

W. Sanders, Esq., F.R.S., F.G.S.......

His Grace the Duke of Argyll, K.T., LL.D., F.R.S.L. & E., F.G.S...
The Hon. the Lord Provost of Glasgow.

Sir William Stirling Maxwell, Bart., M.A., M.P.

Sir William Thomson, M.A., LL.D., D.C.L., F.R.S. L. & E.
Professor Allen Thomson, M.D., LL.D., F.R.S.L. & E.
Professor A. C. Ramsay, LL.D., F.R.S., F.G.S.......
James Young, Esq., F.R.S., F.C.S.

The Right Hon. the Earl of Mount-Edgcumbe..
The Right Hon. Lord Blachford, K.C.M.G..

William Spottiswoode, Esq., M.A., LL.D., F.R.S., F.R.A.S., F.R.G.S. William Froude, Esq., M.A., C.E., F.R.S. Charles Spence Bate, Esq., F.R.S., F.L.S..

Presidents and Secretaries of the Sections of the Association.

Date and Place.

Presidents.

Secretaries.

MATHEMATICAL AND PHYSICAL SCIENCES.

COMMITTEE OF SCIENCES, I.-MATHEMATICS AND GENERAL PHYSICS. 1832. Oxford Davies Gilbert, D.C.L., F.R.S.... Rev. H. Coddington. 1833. Cambridge Sir D. Brewster, F.R.S.....

1834. Edinburgh

Rev. W. Whewell, F.R.S....

Prof. Forbes.

Prof. Forbes, Prof. Lloyd.

SECTION A.-MATHEMATICS AND PHYSICS.

1835. Dublin

Rev. Dr. Robinson.....

1836. Bristol

Prof. Sir W. R. Hamilton, Prof.
Wheatstone.

Rev. William Whewell, F.R.S.... Prof. Forbes, W. S. Harris, F. W.

Jerrard.

1837. Liverpool... Sir D. Brewster, F.R.S........... W. S. Harris, Rev. Prof. Powell, Prof.

1838. Newcastle... Sir J. F. W. Herschel, Bart.,

F.R.S.

1839. Birmingham Rev. Prof. Whewell, F.R.S.

1840. Glasgow ... Prof. Forbes, F.R.S.

1841. Plymouth... Rev. Prof. Lloyd, F.R.S.

1842. Manchester Very Rev. G. Peacock, D.D., Prof. M'Culloch, Prof. Stevelly, Rev.

1843. Cork

1844. York.

F.R.S.

Prof. M'Culloch, M.R.I.A.
The Earl of Rosse, F.R.S...

1845. Cambridge.. The Very Rev. the Dean of Ely.

1846. Southampton Sir John F. W. Herschel, Bart., F.R.S.

1847. Oxford...... Rev. Prof. Powell, M.A., F.R.S.

1848. Swansea .... Lord Wrottesley, F.R.S. 1849. Birmingham William Hopkins, F.R.S.

W. Scoresby.

J. Nott, Prof. Stevelly.

Rev. Wm. Hey, Prof. Stevelly.
Rev. H. Goodwin, Prof. Stevelly, G.
G. Stokes.

John Drew, Dr. Stevelly, G. G.
Stokes.

.Rev. H. Price, Prof. Stevelly, G. G.
Stokes.

Dr. Stevelly, G. G. Stokes.

Prof. Stevelly, G. G. Stokes, W.
Ridout Wills.

1850. Edinburgh.. Prof. J. D. Forbes, F.R.S., Sec. W. J. Macquorn Rankine, Prof. Smyth,

R.S.E.

Prof. Stevelly, Prof. G. G. Stokes. 1851. Ipswich...... Rev. W. Whewell, D.D., F.R.S., S. Jackson, W. J. Macquoru Rankine, &c. Prof. Stevelly, Prof. G. G. Stokes.

Prof. W. Thomson, M.A., F.R.S. Prof. Dixon, W. J. Macquorn Ran

1852. Belfast

1853. Hull.........

L. & E.
The Dean of Ely, F.R.S.

.........

kine, Prof. Stevelly, J. Tyndall. B. Blaydes Haworth, J. D. Sollitt, Prof. Stevelly, J. Welsh.

1854. Liverpool... Prof. G. G. Stokes, M.A., Sec. J. Hartnup, H. G. Puckle, Prof.

1855. Glasgow

R.S.

Rev. Prof. Kelland, M.A., F.R.S.

L. & E.

Stevelly, J. Tyndall, J. Welsh.
Rev. Dr. Forbes, Prof. D. Gray, Prof.
Tyndall.

1856. Cheltenham Rev. R. Walker, M.A., F.R.S. ... C. Brooke, Rev. T. A. Southwood, Prof. Stevelly, Rev. J. C. Turnbull.

1857. Dublin......

1858. Leeds

Rev.T. R. Robinson, D.D.,F.R.S., Prof. Curtis, Prof. Hennessy, P. A.
M.R.I.A.
Ninnis, W. J. Macquorn Rankine,
Prof. Stevelly

Rev. W. Whewell, D.D., V.P.R.S. Rev. S. Earnshaw, J. P. Hennessy,
Prof. Stevelly, H. J. S. Smith, Prof.
Tyndall.

Date and Place.

Presidents.

Secretaries.

...

1859. Aberdeen The Earl of Rosse, M.A., K.P., J. P. Hennessy, Prof. Maxwell, H. J.S. F.R.S.

1860. Oxford

Smith, Prof. Stevelly.

Rev. B. Price, M.A., F.R.S....... Rev. G. C. Bell, Rev. T. Rennison,

Prof. Stevelly.

1861. Manchester. G. B. Airy, M.A., D.C.L., F.R.S. Prof. R. B. Clifton, Prof. H. J. S. Smith, Prof. Stevelly.

1862. Cambridge.. Prof. G. G. Stokes, M.A., F.R.S. Prof. R. B. Clifton, Prof. H. J. S. Smith, Prof. Stevelly.

1863. Newcastle..... Prof. W. J. Macquorn Rankine, Rev. N. Ferrers, Prof. Fuller, F. Jenkin, Prof. Stevelly, Rev. C. T. Whitley. F.R.S., Prof. Fuller, F. Jenkin, Rev. G. Buckle, Prof. Stevelly.

1864. Bath.........

C.E., F.R.S.
Prof. Cayley,
F.R.A.S.

M.A.,

1865. Birmingham W. Spottiswoode, M.A.,

F.R.A.S.

F.R.S., Rev. T. N. Hutchinson, F. Jenkin, G.
S. Mathews, Prof. H. J. S. Smith,
J. M. Wilson.

1866. Nottingham Prof. Wheatstone, D.C.L., F.R.S. Fleeming Jenkin, Prof. H. J. S. Smith,

Rev. S. N. Swann.

1867. Dundee...... Prof. Sir W. Thomson, D.C.L., Rev. G. Buckle, Prof. G. C. Foster,
F.R.S.
Prof. Fuller, Prof. Swan.
Prof. J. Tyndall, LL.D., F.R.S... Prof. G. C. Foster, Rev. R. Harley,
R. B. Hayward.

1868. Norwich 1869. Exeter

Prof. J. J. Sylvester, LL.D., Prof. G. C. Foster, R. B. Hayward,
F.R.S.
W. K. Clifford.

1870. Liverpool... J. Clerk Maxwell, M.A., LL.D., Prof. W. G. Adams, W. K. Clifford,

F.R.S.

1871. Edinburgh. Prof. P. G. Tait, F.R.S.E.

Prof. G. C. Foster, Rev. W. Allen
Whitworth.

Prof. W. G. Adams, J. T. Bottomley,
Prof. W. K. Clifford, Prof. J. D.
Everett, Rev. R. Harley.

1872. Brighton ... W. De La Rue, D.C.L., F.R.S... Prof. W. K. Clifford, J. W. L. Glaisher, Prof. A. S. Herschel, G. F. Rodwell. 1873. Bradford ... Prof. H. J. S. Smith, F.R.S...... Prof. W. K. Clifford, Prof. Forbes, J. W. L. Glaisher, Prof. A. S.Herschel. 1874. Belfast Rev. Prof. J. H. Jellett, M.A., J. W. L. Glaisher, Prof. Herschel, M.R.I.A. Randal Nixon, J. Perry, G. F. Rodwell.

Prof. Balfour Stewart, M.A., Prof. W. F. Barrett, J.W. L. Glaisher,
LL.D., F.R.S.
C. T. Hudson, G. F. Rodwell.

1876. Glasgow Prof. Sir W. Thomson, M.A., Prof. W. F. Barrett, J. T. Bottomley,
D.C.L., F.R.S.
Prof. G. Forbes, J. W. L. Glaisher,
T. Muir.

CHEMICAL SCIENCE.

COMMITTEE OF SCIENCES, II.-CHEMISTRY, MINERALOGY.

1838. Newcastle... Rev. William Whewell, F.R.S.... Prof. Miller, R. L. Pattinson, Thomas

Richardson.

1347. Oxford

Secretaries.

Golding Bird, M.D., Dr. J. B. Melson.
Dr. R. D. Thomson, Dr. T. Clark,
Dr. L. Playfair.

J. Prideaux, Robert Hunt, W. M.
Tweedy.

Dr. L. Playfair, R. Hunt, J. Graham.
R. Hunt, Dr. Sweeny.

Dr. R. Playfair, E. Solly, T. H. Barker.
R. Hunt, J. P. Joule, Prof. Miller,
E. Solly.

1846.Southampton Michael Faraday, D.C.L., F.R.S. Dr. Miller, R. Hunt, W. Randall. Rev. W.V.Harcourt, M.A., F.R.S. B. C. Brodie, R. Hunt, Prof. Solly. T. H. Henry, R. Hunt, T. Williams. R. Hunt, G. Shaw.

Dr. Anderson, R. Hunt, Dr. Wilson.

1848. Swansea Richard Phillips, F.R.S. 1849. Birmingham John Percy, M.D., F.R.S... 1850. Edinburgh . Dr. Christison, V.P.R.S.E. 1851. Ipswich Prof. Thomas Graham, F.R.S....T. J. Pearsall, W. S. Ward. Thomas Andrews, M.D., F.R.S.. Dr. Gladstone, Prof. Hodges, Prof.

1852. Belfast

Ronalds.

Prof. J. F. W. Johnston, M.A., H. S. Blundell, Prof. R. Hunt, T. J.
F.R.S.

Pearsall.

1854. Liverpool... Prof. W. A. Miller, M.D., F.R.S. Dr. Edwards, Dr. Gladstone, Dr. Price. 1855. Glasgow Dr. Lyon Playfair, C.B., F.R.S.. Prof. Frankland, Dr. H. E. Roscoe. 1856. Cheltenham Prof. B. C. Brodie, F.R.S. J. Horsley, P. J. Worsley, Prof. Voelcker.

1857. Dublin...... Prof. Apjohn, M.D., F.R.S., Dr. Davy, Dr. Gladstone, Prof. SulM.R.I.A.

livan.

1859. Aberdeen ... Dr. Lyon Playfair, C.B., F.R.S.. J. S. Brazier, Dr. Gladstone, G. D.

1860. Oxford...... Prof. B. C. Brodie, F.R.S.

Liveing, Dr. Odling.

A. Vernon Harcourt, G. D. Liveing,
A. B. Northcote.

1861. Manchester. Prof. W. A. Miller, M.D., F.R.S. A. Vernon Harcourt, G. D. Liveing. 1862. Cambridge. Prof. W. A. Miller, M.D., F.R.S. H. W. Elphinstone, W. Odling, Prof.

Roscoe. 1863. Newcastle... Dr. Alex. W. Williamson, F.R.S. Prof. Liveing, H. L. Pattinson, J. C. Stevenson.

1864. Bath......... W. Odling, M.B., F.R.S., F.C.S. A.V. Harcourt, Prof. Liveing, R. Biggs. 1865. Birmingham Prof. W. A. Miller, M.D., V.P.R.S. A. V. Harcourt, H. Adkins, Prof. Wanklyn, A. Winkler Wills.

1866. Nottingham H. Bence Jones, M.D., F.R.S.... J.

1867. Dundee

H. Atherton, Prof. Liveing, W. J.
Russell, J. White.

Prof. T. Anderson, M.D., F.R.S.E. A. Crum Brown, Prof. G. D. Liveing,

Prof. E. Frankland, F.R.S., F.C.S.

1868. Norwich
1869. Exeter
1870. Liverpool... Prof. H. E. Roscoe, B.A., F.R.S.,
F.C.S.

Dr. H. Debus, F.R.S., F.C.S. ...

1871. Edinburgh Prof. T. Andrews, M.D., F.R.S.

W. J. Russell.

Dr. A. Crum Brown, Dr. W. J. Rus-
sell, F. Sutton.

Prof. A. Crum Brown, M.D., Dr. W.
J. Russell, Dr. Atkinson.
Prof. A. Crum Brown, M.D., A. E.
Fletcher, Dr. W. J. Russell.

J. T. Buchanan, W. N. Hartley, T. E.
Thorpe.

1872. Brighton ... Dr. J. H. Gladstone, F.R.S....... Dr. Mills, W. Chandler Roberts, Dr. W. J. Russell, Dr. T. Wood.

1873. Bradford ... Prof. W. J. Russell, F.R.S....... Dr. Armstrong. Dr. Mills, W. Chandler Roberts, Dr. Thorpe.

1874. Belfast

Prof. A. Crum-Brown, M.D., Dr. T. Cranstoun Charles, W. Chand-
F.R.S.E., F.C.S.
ler Roberts, Prof. Thorpe.

1875. Bristol...... A. G. Vernon Harcourt, M.A., Dr. H. E. Armstrong, W. Chandler

F.R.S., F.C.S.

1876. Glasgow W. H. Perkin, F.R.S.

Roberts, W. A. Tilden.

W. Dittmar, W. Chandler Roberts,
J. M. Thomson, W. A. Tilden.

Date and Place.

Presidents.

Secretaries.

GEOLOGICAL (AND, UNTIL 1851, GEOGRAPHICAL) SCIENCE.

COMMITTEE OF SCIENCES, III.—GEOLOGY AND GEOGRAPHY.

1832. Oxford ...... R. I. Murchison, F.R.S. 1833. Cambridge . G. B. Greenough, F.R.S. 1834. Edinburgh. Prof. Jameson

John Taylor.

W. Lonsdale, John Phillips.
Prof. Phillips, T. Jameson Torrie,
Rev. J. Yates.

SECTION C.-GEOLOGY AND GEOGRAPHY.

1835. Dublin

R. J. Griffith

1836. Bristol

Captain Portlock, T. J. Torrie.

Rev. Dr. Buckland, F.R.S.-Geo- William Sanders, S. Stutchbury, T. J. graphy. R. I. Murchison, F.R.S. Torrie.

1837. Liverpool... Rev. Prof. Sedgwick, F.R.S.-Geo- Captain Portlock, R. Hunter.-Geography. G.B.Greenough, F.R.S. graphy. Captain H. M. Denham, R.N. 1838. Newcastle... C. Lyell, F.R.S., V.P.G.S.—Geo- W. C. Trevelyan, Capt. Portlock.— graphy. Lord Prudhope. Geography. Capt. Washington. 1839. Birmingham Rev. Dr. Buckland, F.R.S.-Geo- George Lloyd, M.D., H. E. Strickland, graphy. G.B.Greenough, F.R.S. Charles Darwin. 1840. Glasgow... Charles Lyell, F.R.S.-Geogra- W. J. Hamilton, D. Milne, Hugh phy. G. B. Greenough, F.R.S. Murray, H. E. Strickland, John Scoular, M.D.

1841. Plymouth.. H. T. De la Beche, F.R.S..........

1842. Manchester R. I. Murchison, F.R.S.

1843. Cork

W. J. Hamilton, Edward Moore, M.D.,

R. Hutton.

E. W. Binney, R. Hutton, Dr. R.
Lloyd, H. E. Strickland.

Richard E. Griffith, F.R.S., Francis M. Jennings, H. E. Strick

1844. York......... Henry Warburton, M.P., Pres. Prof. Ansted, E. H. Bunbury.

Geol. Soc.

1845. Cambridge. Rev. Prof. Sedgwick, M.A., F.R.S.

1846. Southampton Leonard Horner, F.R.S.-Geography. G. B. Greenough, F.R.S.

1847. Oxford...... Very Rev. Dr. Buckland, F.R.S.

1818. Swansea ... Sir H. T. De la Beche, C.B.,

F.R.S.

Rev. J. C. Cumming, A. C. Ramsay
Rev. W. Thorp.

Robert A. Austen, J. H. Norten, M.D.,
Prof. Oldham.-Geography. Dr. C.
T. Beke.

Prof. Ansted, Prof. Oldham, A. C.
Ramsay, J. Ruskin.

Starling Benson, Prof. Oldham, Prof.
Ramsay.

1849. Birmingham Sir Charles Lyell, F.R.S., F.G.S. J. Beete Jukes, Prof. Oldham, Prof. A. C. Ramsay.

1850. Edinburgh * Sir Roderick I. Murchison, F.R.S. A. Keith Johnston, Hugh Miller, Prof.

1851. Ipswich

...

1852. Belfast

1853. Hull

Nicol.

SECTION C (continued).—GEOLOGY.

William Hopkins, M.A., F.R.S..., C. J. F. Bunbury, G. W. Ormerod,

Searles Wood.

Lieut.-Col. Portlock, R.E., F.R.S. James Bryce, James MacAdam, Prof.

Prof. Sedgwick, F.R.S.

1854. Liverpool. . Prof. Edward Forbes, F.R.S.

M'Coy, Prof. Nicol.

Prof. Harkness, William Lawton.
John Cunningham, Prof. Harkness,
G. W. Ormerod, J. W. Woodall.

* At a Meeting of the General Committee held in 1850, it was resolved "That the subject of Geography be separated from Geology and combined with Ethnology, to constitute a separate Section, under the title of the Geographical and Ethnological Section," for Presidents and Secretaries of which see page xxxvii.