542 Report S.A.A. Advancement of Science. 



Thomas, T.. P.O. Box -0J5, Johannesburg. 



Thomas. Wahvyn. M.B., B.C., B.A. Camb.. City Ckib. Cc.pe Town. 

 Thompson, W. C. P.O. Box 485, Johannesburg. 

 ^Thompson, W. Wardlaw. Department of Agriculture, Cape Town. 

 Thomson, Professor Wilham, M.A.. B.Sc, F.R.S.E.. University 



Offices, Cape Town. 

 Thorne, W., J. P., Mayor of Cajje Town. 

 ■^Thornton, John Miller. jNI.fnst.C.E.. Saiidilli Hdusc. L'itenhage, 

 Cape Colony. 

 Thurston, G. H.. P.O. Box 67. Johannesl)urg. 

 Thwaits, Dr. J. A.. P.O. Box J 654, Johannesburg. 

 Tietz, Heinrich, Ph.D., B.A., Vista, Belvliet Park. C'':>servatory 

 Road, near Cape Town. 

 ^Tilney, John Deane, I.S.O.. M.Inst.C.K.. East I.rnii- in. Cape 



Colony. 

 "*Tomony, Dr. W. M., Medical Officer of Health, Bloemfontehi. 



Tosh, William. M.I.Mech.E.. J. P., P.O. Box 2392, Johaimesburg. 

 ^Townsend, Stephen Frank. C.E.. Chief Resident B^nL-neer and 



Agent. Rhodesia Railwaxs. Ltd.. Bulawavo. Rhodesi:. 

 *Treeby, P. E., P.O. Box 534. Johannesburg. 

 Treloar, P.Q., P.O. Box 112. Roodepoort, Transvaal. 

 Trill, Fred E.. A.Tnst.E.E.. Glenara, Rondebosrh. near Cape Town. 

 *Trill, George William Charles, Hetherton Road, off Palmvra Road, 

 Newlajids, near Cape Town. 

 Tripp, George Dixon. M.A.. Fern Cottage. Camp Grovui Road, 

 Rondebosch, near Cajie Town. 

 "*Tucker, R., School of Mines, Kimberlev. Cape Colon v. 



Tucker, W. K., C.M.G., P.O. Box 9, Johanne.sburg. 

 *Tudhope, Alfred Dryden. Assoc.M.In.st.C.E.. Government Land 



Surveyor, Anela, Selwyn Road. Kenilworth. near Caj-e Town. 

 *Tudor. William, Manager, De Beers Consd. Mines. Ltd.. K'ml)erlev, 

 Cape Colony. 

 Turner, Dr., P.O. Box 356. Pretoria. 

 Turton, Jno., P.O. Box 117. Barberton. Transvaal. 

 Tutton, F., P.O. Box J049. Johannesburg. 



Tweddill. Samuel M., M.S.A.L., F.G.S., P.O. Box 677. Icetoria. 

 ■*Tyrrell, E. G. Harcourt, P.O. Box 13 v Maritzburg, NataL 

 ^Tyrrell, Colonel F., M.Inst.C.E.. East' London. Cape Co-'ony. 



Upton, A. S.. P.O. Box 619. Johannesburg. 

 Upton, Prescott, P.O. Box 1026. Johanne.slnirg. 



Van der Riet, Professor Berthault de St. Jean, ^LA., Ph.D.. \'ictoria 



College, Stellenbosch. Cape Colonv. 

 Vaughan, J. A., R.N., Retd.. P.O. Box 1104, Johannesljur^. 

 ^Vines, C. Granville, Borough Electrical Engineer. Kimbec ev. Cape 



Colony. 

 "*Viney, Arthur E., P.O. Box ^^2'^^. Johannesluirg. 



