.isr OF papi<:rs uI'.ai) at tiii!: sectjoxal 



.MEriTlXCS. 



Skction a. — AsTkoNOAn-, Matiif-matics, Physics, AIetkouo- 

 i.()(.;v, Gkodi:sn , Survi-:>'tx(;. ENciMackixc., AuriiiTRr- 



TUKE, AND 1ku1(;\TK)N. 



MO^W.iy, JULY 3- 



I. The metric system of weights and measures and the decimalisation of 



tlie coiriage: R. I". A. Inni-s. F-R.A.S.. F.R.S.E. 

 J. Dayliyiit saving: R. T. .\. Innks. F.R.A.S., F.R.S.E. 



TUESDAY, JULY 4- 



3. Note on ec|uilateral triangles, inscribed in ellipses, and rognl;u" tetralicdra 



in ellipsoids : Prof. W. N. Roseve.\re, M.A. 



4. .\ class of alternants with trigonometrical elements: Sir T. Miik, Kt., 



C.M.G., ^[.A.. LL.D., F.R.S., F.R.S.E. 



5. I'"ire-resisting bnilding construction: W. J. Delbridge, A.R.r.Il.A., 



6. The modification of South African rainfall: T. M. Sni. 



WEDS BSD. lY, JULY 5. 



7. Trades schools as aids to industry: Prof. J. Orr, B.Sc, M.I.C.E, 



E RID AY, JULY 7. 

 X. .\ddress by Prof. J. Orr. B.Sc, M.I.C.E.. President of the Section. 



Si:cTi(»N B. — Chemistry, Geology, Metallurgy, Mineralogy, 

 AND Geography. • . 



TUESDAY, JULY -j. 



r. Address by Prof. J. A. Wilkixsok, i\l..\., F.C.S., President of the 



Section. 

 2. A note on the thermal conductivity of the rocks of the Witwatersrand : 



Prof. R. A. Lehff.lut, B.A., D.Sc. 

 ,v The medicinal springs of South Africa: Prof. i\I. Isi. Ri.vul, Ing.D. 



4. The wheat soils of the Alexandria Division, Cape Province: C. I'". 



Jlritz, M.A.. D.Sc, F.I.C. 



IVEDKESDAY JULY s- 



5. Standards and standard methods in the analvsis of foods and drugs: 



J. S. Jamiesox. F.I.C, F.C.S. 



6. On a unique occurrence of molv])dcnum in Xatal : A. L. i)L- Toi r. B.A., 



D.Sc, F.G.S. 



7. Experiments with sugar beet in South Africa: C. T•^ Jruirz, M..A., 



D.Sc, F.LC. 



8. I'ischer's syiUhesis of tanning substances and dcpsides : Prof. J. A. 



WiLKi X.SOX, -M.A., h.C S. 



f 



FRIDAY. JUIA' 7. 

 <;. Examination of the hark and st-e<! oil nf 'I'ricliilia i-iiu'li((i: I. S. 

 J.\MtESON, F.I.C, F.C.S. 

 10. Some factors inilucncing the solubility of ])ho--phoric oxide in nn'xed 

 krlilisers c"ntaiimg superi)hosphates : E. V. Fl.vck, 



