THE MEDICINAL Sl'KIN(;s OF SOUTH AFRICA. 221 



( 42-43' C). (iotulini (40'), Brandvlei (62°). and Caledon (49°). 

 The majority of the remaining- hot springs in the Colony 

 he on a hue running from Caledon more or less parallel 

 to the coast as far as Port Elizabeth, namely, Montagu 

 (45°). Barrvdale (no temperature recorded, but said to be un- 

 comfortabh hot to the touch), Warmbad, Olifants River 

 (45.6"), Tuoverwater Poort (49°), and Zwartkops (54.5°). It 

 might l)e interesting to ascertain whether this regularity of 

 grouping is not something more than mere accident. 



((■) The Springs at W'ini'.urc. O.F.S. 



The water of the baths at Winburg. which were referred to 

 under X >. 55 of my ])rcvious paper on the medicinal springs of 

 South Africa, has been analysed, and in view of the preponder- 

 ance of sodium chloride over all other constituents, the spring 

 should be classified as a salt spring. The baths are situated on 

 the farm De Villiersgunst, eight miles south-south-west from 

 Winburg. A stone bath, approximately 8 'feet long by 5 feet 

 wide, and closed in with corrugated iron, is built over the " eye " 

 of the spring. This is described as the ladies' bath, and there is 

 a similar structure for the use of men adjoining it, also fed by a 

 spring. The water is described as being tepid and impregnated 

 with sulphuretted hydrogen, and there is a continuous rush of 

 l)ubb]es of gas through the water over the " eyes " of the springs. 

 When the water reached the laboratory it contained no trace of 

 either -ul])huretted hvdrogen or carbon dioxide. There are said 

 to be indications of deposits of sulphur outside the bath build- 

 ings, but none in the baths themselves. The only accommodation 

 consists of a primiti\'e stone Iniilding of three rooms, and visitors 

 must make their own arrangements for obtaining supplies. As 

 is usual at springs of this kind, the majority camp in tents and 

 wagons. The springs seem to enjoy a measure of reputation, 

 having been patronised by some 150 people during the past 12 

 months. The water seems to be preferred for bathing rather 

 than for internal use. and is reported to be efficacious in cases of 

 chronic rheumatism, gout, sciatica and lumbago. As in the case 

 of the majority of South African medicinal springs, only such 

 unreliable and i)rejudiced iniformation about the therapeutic pro- 

 perties is available as is supplied by enthusiastic patients. 



Density. — The density at 4° C (distilled water 4=^ C -= i ) = 

 1. 00 1 7. 



Total Solids. — 100 c.c. of water of 12°, evaporated and 

 heated to 105''. gave 0.2204 of a gram of residue. 100,000 c.c. of 

 water of 4' therefore contain 220.50 grams of dissolved solid 

 constituents. 



Ih-icnuinat'uni of the A)iio)is. — Silica. 



I. 2 litres of 12.95° g^ve 0.0827 gram SiO. + BaSO^. 

 Residne obtained on treatment with hydrofluoric acid, 

 0.0040 gram of BaSO^. 



