At first the diggings were chiefly along the rivers.
On the discovery of the "dry diggings" at Kimberley, the majority of the diggers removed thither.
The yield reached its lowest point in 1899, but subsequently increased through the application of improved machinery, while the tailings of the old diggings were treated by the cyanide process with profitable results.
The first discovery of gold in mining quantities was made by Hargraves in 1851, at the junction of Lewis Ponds and Summerhill Creek, in what was called the Ophir Diggings, near Bathurst.
4 By the middle of September snow flurries have announced the imminence of winter, the smaller streams congeal, the earth freezes, the miner perforce abandons his diggings, and navigation ceases even on the Yukon in October.
1 In the lead regions in the S.W., with the help of Pawnee slaves, the Indians worked the lead diggings in a rough way.
The point of interest is that their diggings have shown that the Horus kings of Upper Egypt had under the " Scorpion King " (who is not the same person as Narmer or Narmerza, as we now must call him) extended their rule as far as the apex of the Delta, N.
Besides the Pretoria fields there are diamondiferous areas (alluvial diggings) in the Bloemhof district on the Vaal river north-east of Kimberley, and in other regions.
The eastern boundary of the new territory was made to include the region between the Harts river and the Vaal, in which the diamond diggings were situated, but not the Bloemhof district.
By the side of the Lechaeum road, near the steps leading to the propylaea, were found in deep diggings thirteen early Geometric vases.
On the Lechaeum road, on which a bewildering wealth of fountains and statues is enumerated, only the Baths of Eurycles below the plane tree were found; deep diggings were made into them, and the foundations of the facade laid bare.
These " dry diggings " were therefore at first supposed to be alluvial in origin like the river gravels; but it was soon discovered that, below the red surface soil and the underlying calcareous deposit, diamonds were also found in a layer of yellowish clay about 50 ft.
One of the best known is that of Jagersfontein, which was really the first of the dry diggings (discovered in 1870).
The River Diggings on the Vaal river are still worked upon a small scale, but the production from this source is so limited that they are of little account in comparison with the mines in the blue ground.
It was subsequently visited by La Perouse (1776), Kotzebue (1816), &c. At the time of Roggeveen's discovery the island probably contained from 2000 to 3000 inhabitants of Polynesian race, who, according to their own tradition, came from Rapa Iti (Little Rapa) or Oparo, one of the Tubuai or Austral group. In 1863 a large proportion of the inhabitants were kidnapped by the Peruvians and transported to work at the guano diggings on the Chincha Islands.
In 1883 the Cyprus Museum was founded by private enterprise, and on its behalf Max Ohnefalsch-Richter, who had already made trial diggings for Sir Charles Newton and the British Museum, excavated sanctuaries at Voni and Kythrea (Chytri), and opened tombs on some other sites.
He published in 1893 his Ten Years' Diggings in Egypt, was given the honorary degree of D.C.L.
- His chief general works on Egyptian subjects are, Ten Years' Diggings in Egypt (1893); History of Egypt (1894-1905); Egyptian Tales (1895); Religion and Conscience in Ancient Egypt (1898); Syria and Egypt (1898); Royal Tombs of the First Dynasty (1900); Royal Tombs of the Earliest Dynasties (1901); Hyksos and Israelite Cities (1906); Religion of Ancient Egypt (1906); Personal Religion in Egypt (1908).