Note 107 — Chapter XVI · DESCRIPTION OF THE GEOLOGICAL AND GENERAL PHYSICAL FEATURES (continued) THE NORTH-EAST PORTION OF THE ISLAND (continued)

Referred to genus 16 of the augite-andesites. There are two sets of felspar-lathes in the groundmass; the larger, ·23 mm. long, are more or less parallel; the smaller, ·04 mm. long, form a plexus.