54<^ thp medicinal springs of south africa. 



Table of Ion Equivalents (Prof. Hahn's Analysts). 



Cations. Anions. 



Na 0.677 CI , 0.224 



T.i 0.005 



Ca 0.052 SOj, 0.009 



\\g 0.009 



Fe 0.007 CO3 0.517 



Total 0.750 Total 0.750 



45. Rupisi Rwer. 



This hot sprin^g^ is situated 10 to 15 miles east of the Sal)i 

 River, in South Alelsetter, Rhodesia, and is described as a weak 

 alkaline water. 



46. Junction of Odd and Wengesi Rivers. 



This hot spring is situated on vacant land south of Um- 

 vumbu farm, near the junction of the above rivers, Umtali Dis- 

 trict. Rhodesia. It is described as a weak alkaline S])rino^. It 

 forms a deposit which has been submitted to analysis and found 

 to contain : — 



(i) Organic matter in small ((uantities; 



(2) .-\ large amount of sandv silica: 



(3) A considerable quantity of soluble alkali salts, chiefly 

 sodium bicarbonate, .sodium chloride and sodium sulphate. 



(4) Salts of iron, aluminium, magnesium, calcium and 

 jKitassium in small quantities. 



47. Badplaats or Doornpoort, District Car(dina. 



No complete analysis of the water was obtainal)le, l)Ut from 

 the appended analysis of the solid residue the water would 

 appear to be a sul])hated alkaline water. It a])pears to contain 

 sul])liurette(l hydrogen, but in view of the ])re]K)nderancc of alka- 

 line carbonates, sulphates and chlorides in the dissohed salts. I 

 should prefer to class it witli the alkaline rather than with the 

 sulphur s])rin.gs. The spring is Government property, and is 

 open to the j)ul)lic, l)Ut no system of control has been inaugurated, 

 and the conditions of living and bathing are most ]>rimitive. I 

 am informed that the " season " lasts from May to September, 

 and tliat the farmers camp in tents and waggons. .\t times 

 tluTc are as many as 50 to 60 ])atients. The following descrip- 

 tion of the spring and its geological features is taken from the 

 Annual Report of the (ieological Survey for k;!,:;, p. 40: — 



" (hi ihe ( lovernment ground Hadiilaats. al)out 36 miles east 

 of Carolina, the si)ring is situated almost in the bed of a small 

 tributary to the ButYels Spruit, and about 300 vards north-w^est 

 of the main road. It issiio \igorousI\. like boiling water, from 

 granitic rocks on the left l)ank of the little tributarv at an un- 

 plea-^antly high teini,>eraturc, ^o that the waters of the stream 



I 



