[88]. A Year in Fiji, pp. 154, 169; London, 1881.
[89]. It displays an abundance of small phenocrysts of plagioclase, augite, and olivine partly serpentinised, in a groundmass composed in the main of coarse augite grains (·025 mm. in size) and of felspar microliths (·07 mm. in length) in smaller proportion, with little if any residual glass. Specific gravity 2·98. It is near the Waikawa basalt, referred to on p. [202], and is placed in the same genus (13) of the olivine class.
[90]. They are described on p. [269] under the non-porphyritic sub-genus of genus 2 of the augite-andesites.
[91]. These rocks are in most cases referred to the orthophyric and felsitic orders of the hypersthene-augite andesites. The rocks of the last-named order prevail, and form the type of the group, as described on p. [291].
[92]. It belongs to genus 37 of the olivine class. The felspar-lathes average 0·2 mm. in length, and there is a little altered interstitial glass.
[93]. It is referred to genus 16, species D, of the augite-andesites. The felspar-lathes have an average length of ·3 mm.
[94]. Proceedings, Queensland Branch, Geographical Society of Australia, vol. i.; 1886.
[95]. Referred to genus 9 of the augite-andesites.
[96]. The general characters of these rocks are described on p. [308].
[97]. Geology of the United States Exploring Expedition.