LIST OF PAPERS RILXD AT THE SECTIONAE 



^JEETINGS. 



Section A. — Astronomy, Mathematics. Physics, Meteoro- 

 logy. Geodesy. Surveying, Engineering, Architec- 

 ture, AND Irrigation. 



MONDAY. JULY $. 



1. Address by F. E. Kanthack, M.T.C.E., M.I.M.E.. President of the 



Section. 



TUESDAY. .11 LY 6. 



2. Fire resisting- materials in building construciiim. l!y A. II. Kkid. 



F.R.I. B.A.. F.S.A., F.RSan.l. 



3. On the discrimination of the General Conic. Bv Prof. J. P. Dalton, 



M.A., D.Sc. 



4. On the Gamma or Factorial b'unction. lly Prof. W. X. Roskveark, 



M.A. 



5. Transition from Elementary Algebra to the Calculus, without Inlinite 



Series. By Prof. W. X. Rosf.veare, M.A 



6. Note on the intersection of two curves whose e(|uations are given in 



polar coordinates : with an illustrative example. By Prof. L. 

 Crawford. M.A., D.Sc, F.R.S.E. 



7. The measurement of the natural ionisation of the air. Bv E. Jacot, 



B.A. 



WEDXESDAY, J U EY -. 



8. Secular change in the period of U Carince. By A. W. Robert.s, D.Sc, 



F.R.A.S., F.R.S.E. 



9. Presentment and proof in geometry: a study if the associated circles 



of the triangle. By Rev. V. C. Kolbe. B.A., D.D. 



10. Some aspects of modern naval de\elo]iment. By H. C. Ke.xw.w. 



11. The masses of visual !)inarv stars. f'>\- k. T. A. In.xes, I'".K..A.S., 



F.R.S.E. 



FRIDAY. JULY g. 



12. ^lodern topographical methods and instruments. By W. C. van deu 



Steer. 



13. Preliminary notes on the intensitv of rainfall in tlie Transvaal. By 



G. W. Co.x, F.R.Met.S. 



Section B. — Chemistry, GE0L()(;^•, Metallurgy, Mineralogy, 



AND Geography. 



TUESDAY. .lUEY 6. 



I. Address by the late PI Kvvasto.x, M..\., F.G.S.. President of the 



Section. 

 2 The mineral spring on the farm Rietfontein. District I'.randtort, 



O.lvS. r.v'Prof M. R IN- 111., ing.l). 

 3. Notes on the chemistry of the IXaras { Aii.iillin.s'icyos licrrida Nook). 



lly \V. Veksfelii, I! A., D.Sc, and (i. \\ l!KiTTK.\,r...\. 



4 Contriliiitions to tlie cliemistrv i>\ the Sova bean, lly Prof. P. D. 



IIahx, M.A., Ph.D. 



5 Note* on the chemical composition of Karrtio .Vsh. B\- C. h. Jlritz, 



M.A., D.Sc, F.l.C.' 



