Travaux missionnaires et les scènes dans le sud de l'Afrique .. . R-D'ings, a jugé nécessaire de prendre leurs armes withthem de peur d'une surprise. Notre grand-fossé, l'extension de près de deux milles, était en effet creusé,comme les murs de nos maisons avaient été construites, introublous fois. Le croquis ci-dessous donne une bonne viewof Gasigonyane ou Kuruman fontaine. Il issuesfrom caverns dans une petite colline, qui est composé de calcaire gris et ofblue, mélangé avec considerablequantities de flint, mais pas dans les nodules trouvés comme inbeds de craie. À partir de l'apparence des grottes, et l'irrégularité des strates, on pourrait

• Contributeur: The Reading Room / Alamy Banque D'Images
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Missionary labours and scenes in Southern Africa .. . r dwell-ings, found it necessary to take their guns withthem for fear of a surprise. Our large water-ditch, extending nearly two miles, was indeed dug, as the walls of our houses had been built, introublous times. The accompanying sketch gives a correct viewof Gasigonyane or Kuruman fountain. It issuesfrom caverns in a little hill, which is composed ofblue and grey limestone, mixed with considerablequantities of flint, but not in nodules as found inbeds of chalk. From the appearance of the caves, and the irregularity of the strata, one might be ledto suppose they have been the results of internalconvulsions. The water, which is pure and whole-some, is rather calcareous. It is evident that itssource must be at a very great distance, as ail therains which fall on the hills and plains for fortymiles round, iu one year, could not possibly supplysuch a stream for one month. Although there areno sandstone formations nearer than thirty mil:^s, great quantities of exceedingly fine sand come from. it, and it appears to boil up out of the smallersprings in front of the larger, and is to be foundiu deposit in the bed of the river for miles distant.The substratum of the whole of the country, as faras the Orange River, is compact limestone, whichin some of the Harahana hills rises considerablyabove the neighbouring plain ; but these only formthe basis of argillaceous hills and iron-schist, onthe top of which the compass moves at random, oraccording to the position in which it is placed.The strata of these schistose formations are oftenfound to bend and curve into all shapes, frequently exhibiting an appearance of golden asbestos, butextremely hard. The common blue asbestos is tobe found at Gamaperi, in the neighbourhood, thesame as that found near the Orange River. Thelimestone extends to Old Lithako, where there arehills of basalt and primitive limestone; amongwhich masses of serpentine rock, of various colours, usually called p

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