A. From between 400 and 500 feet above the sea on the south slope of the Mariko Range.... The characters and mode of occurrence of this rock are described on page [187].
B. From an elevation of 1,100 feet on the south slope of the Korotini Range.... The description of the locality will be found on page [160].
This rock is hard and compact and looks like an altered basic rock showing a few minute specks of pyrites. It is composed of fine palagonitic debris, and small fragments of semi-vitreous basic rocks and of crystals of pyroxene and felspar, none of the fragments exceeding ·2 mm. in diameter. Tests of minute foraminifera, filled with matrix and of the “Globigerina” type, occur very scantily. There is little or no carbonate of lime; but secondary silica, both colloid and crystalline, is present as an alteration product.
C. From the vicinity of Yaroi, 30 feet above the sea.... The locality is described on page [189].
This is a dark grey hard compact rock, containing probably between 10 and 15 per cent. of carbonate of lime, and looking like an altered limestone. In the section it displays minute tests of foraminifera of the “Globigerina” type in a matrix composed of fine disintegrated palagonitic material, impregnated with calcite and containing also fragments of minerals (augite and felspar), none of which exceed ·2 mm. in diameter. There are also a few similar-sized fragments of semi-vitreous basic rocks. Some fine cracks in the rock-mass are filled with a quartz mosaic. The tests of the foraminifera remain calcitic; but their cavities are filled either with the matrix or with calcite or with a colourless fibro-radiate mineral polarising in blackish-blue hues.
D. From the south shore of Savarekareka Bay.... The locality is described on page [190].
This is a bright green hard compact rock with flinty fracture and not effervescing with an acid. In the slide it shows a few casts of foraminifera of the “Globigerina” type in a matrix composed mainly of fine debris (·01-·04 mm.) of felspar and pyroxene with much greenish opaque amorphous alteration products. The abundance of pyroxene is remarkable. The material of the tests of the foraminifera is altogether replaced by a greenish yellow mineral, occurring in grains and radiating prisms, apparently epidote.
E. From an elevation of 950 feet on Mount Thambeyu.... The locality is described on page [177].
A hard dark grey rock containing 10 or 15 per cent. of carbonate of lime and showing fine specks of pyrites. In the slide are displayed numerous tests of foraminifera of varying size up to ·5 mm.; scattered patches of pyrites; fragments of a semi-vitreous basic rock, not exceeding ·15 mm. in diameter, and of plagioclase and pyroxene; in a matrix of the finest debris of the same materials impregnated with granules of calcite. The tests of the foraminifera are filled either with calcite, showing a black cross in polarised light, or with a zeolite, or with pyrites, or with the matrix.