Rising from the plains

Basin and range

In suspect terrain

Annals of the former world

Earth :inside and out

Reading the rocks : the autobiography of the earth

The history of earth : an illustrated chronicle of our planet

The mountains of Saint Francis : discovering the geologic events that shaped our earth

A history of Earth : in 100 groundbreaking discoveries

Underland a deep time journey

Oranges

Pennsylvania caves and other rocky roadside wonders

The founding fish

Planet earth

The practical geologist

Rock formations and unusual geologic structures :exploring the earth's surface

Earth story : the shaping of our world

The geology of Pennsylvania

Earth : an intimate history

Measuring eternity : the search for the beginning of time

How mountains are made

Earthshake : poems from the ground up

Looking for a ship

My teacher is a dinosaur : and other prehistoric poems, jokes, riddles, & amazing facts

A collection of occasional surveys of iron, coal and oil districts in the United States, made during the last ten years

Underland : a deep time journey

Geology

The voyage of the Beagle

Discovery Channel rocks & minerals : an explore your world handbook

Inside the earth

An introduction to fossils and minerals : seeking clues to the earth's past

Prehistoric world

Geology the study of rocks

Dirtmeister's nitty gritty planet Earth : all about rocks, minerals, fossils, earthquakes, volcanoes, and even dirt!

Nature's extremes : inside the great natural disasters that shape life on earth

Roadside geology of Pennsylvania

One strange rock

Outstanding scenic geological features of Pennsylvania

The geology of Centre County

The ends of the world : volcanic apocalypses, lethal oceans, and our quest to understand Earth's past mass extinctions

I can be a geologist