Ixxx 



LECTURES TO THE OPERATIVE CLASSES. 



Date and Place 



1890. 

 1891. 

 1892. 

 1893. 

 1894. 

 1895. 

 189G. 

 1897. 

 1898. 



Leeds 



Cardiff 



Edinburgh 

 Nottingham 



Oxford 



Ipswich ... 

 Liverpool... 

 Toronto ... 

 Bristol 



Subject of Lecture 



1900. Bradford. 



1901. Glasgow , 



1902. Belfast 



1903. Southport 



1904. Cambridge 

 1906. York 



Prof. J. Perry, D.Sc, F.R.S. 

 Prof. S. P. Thompson, F.R.S. 

 Prof. C. Vernon Boys, F.R.S. 



Prof. Vivian B. Lewes 



Prof. W. J. Soilas, F.R.S. ... 



Dr. A. H. Fison... 



Prof. J. A. Fleming, F.R.S.... 



Dr. H. O. Forbes 



Prof. E. B. Poulton, F.E.S. ... 



Prof. S. P. Thompson, F.E.S. 

 H. J. Mackinder, M.A 



Prof. L. C. Miall, F.R.S 



Dr. J. S. Flett 



Dr. J. B. Marr, F.R.S 



Prof. S. P. Thompson, F.R.S. 



Spinning Tops. 



Electricity in Mining. 



Electric Spark Photographs. 



fepontaneous Combustion. 



Geologies and Deluges. 



Colour. 



The Earth a Great Magnet. 



New Guinea. 



The ways in which Animals Warn 



their Enemies and- Signal to their 



Friends. 

 Electricity in the Industries. 

 The Movements of Men by Land 



and Sea. 

 Gnats and Mosquitoes. 

 Martinique and St. Vincent : the 



Eruptions of 1902. 

 The Forms of Mountains. 

 The Manufacture of Light. 



OFFICERS OF SECTIONAL COMMITTEES PRESENT AT 

 THE YORK MEETING. 



SECTION A, — MATHEMATICAL AND PHYSICAL SCIENCE. 



President. — Principal E. H. Griffiths, F.R.S. Vice-Presidents. — Prof. 

 H. L. Callendar, F.R.S. ; Prof. A. R. Forsyth, F.R.S. ; Prof. A. Gray, 

 F.R.S. Secretaries.— Proi. A. W. Porter, B.Sc. {Recorder) , L. N. G. Filon, 

 D.Sc. ; Dr. J. A. Harker ; A. R. Hinks, M.A. ; H. Dennis Taylor. 



SECTION B. — CHEMISTRY. 



President. — Prof. Wyndham R. Dunstan, F.R.S. Vice-Presidents. — - 

 G. T. Beilby, F.R.S. ; A. Vernon Harcourt, F.R.S. ; Sir William H. 

 Perkin, F.R.S. ; Prof. A. Smithells, F.R.S. ; Prof. W. A. Tilden, F.R.S. 

 Secretaries.— Vvoi. W. J. Pope, F.R.S. (Recorder) ; Dr. E. F. Armstrong ; 

 Prof. A. W. Crossley, D.Sc. ; S. H. Davies. 



SECTION C. — GEOLOGY. 



President.— Gr. W. Lamplugh, F.R.S. Vice-Presidents.— Trot T. W. 

 Edgeworth David, F.R.S. ; Prof. J. W. Gregory, F.R.S. ; T. H. Holland, 

 F.R.S. ; Prof. H. A. Miers, F.R.S.; J. F. Walker, M.A. Secretaries.— 

 H. L. Bowman, M.A. (Recorder); Rev. W. Lower Carter, M.A. ; Rev. 

 W. Johnson, B.A., B.Sc. ; J. Lomas. 



SECTION D. — ZOOLOGY. 



President.— J . J. Lister, F.R.S. Vice-Presidents. — G. A. Boulenger, 

 F.R.S. ; Prof. G. C. Bourne ; Prof. Jungersen ; Prof. Pelseneer ; A. E. 

 Shipley, F.R.S. Secretaries.— B.. W. Marett Tims, M.D. (Recorder); 

 J. H. Ashworth, D.Sc. ; L. Doncaster, M.A. ; Oxley Grabham, M.A. 



SECTION E. — GEOGRAPHY. 



President. — Right Hon. Sir George Taubman Goldie, K.C.M.G., 

 D.C.L., F.R.S. Vice-Presidents.— Ma.ior C. F. Close, R.E., C.M.G. ; 



