Читать книгу Some Salient Points in the Science of the Earth - Sir John William Dawson - Страница 16

Table of Contents

DEDICATED TO THE MEMORY OF

SIR WILLIAM E. LOGAN,

The unwearied Explorer of the Laurentian Rocks,

and the Founder

of the

Geological Survey of Canada.

What Are the Oldest Rocks, and where?—Conditions of their Formation—Indications of Life—What its probable Nature

Nature-print of Eozoon, showing laminated, acervuline, and fragmental portions.

This is printed from an electrotype taken from an etched slab of Eozoon, and not touched with a graver except to remedy some accidental flaws in the plate. The diagonal white line marks the course of a calcite vein.