Athro Limited, Education on the Web

Welcome to Athro, Limited

Your Source for High school and College level Biology, Earth science, and Geology on the Web.

Materials for High School and College Biology




Fact, Theory, and Rhetoric

Materials for College Geology

Historical Geology

Physical Geology

Geologic Sections

Field Trips

Pleistocene Glacial Sediments, Skull Cliff, Barrow, Alaska

Materials for High School Earth Science


Interpreting Geologic Sections

Field Trips

Cretaceous-Tertiary Boundary, Montana

Approaching the Historical Sciences

How Science Works

Tools of Historical Science


More information about Athro
Copyright © 1997, 1998, 2000 Athro, Limited. All Rights Reserved.
Written by Paul J. Morris
Maintained by Athro Limited
Date Created: 2 Sept 1997
Last Updated: 4 Jan 2000