CONTENTS. 
Introduction 1 
Previous work 3 
New observations 6 
Amherst island 7 
Grindstone island 8 
Alright island 9 
Coffin island 9 
Summary 10 
ILLUSTRATIONS. 
Map. No. 1478. Diagram showing the St. Lawrence submerged coastal 
plain at end 
Plate I. Striated pebbles from Amherst island F rontispiece 
Figure I. The Magdalen islands 2 
