LIST OF ILLUSTRATIONS. 



MAP. 



Geological Map of Lower Peninsula.^ 



VIEWS. 



PAGE 



Limestone Bluffs, Little Traverse Bay opposite Title 



Quarry of the Grandville Plaster Co " 102 



Quarr)' of the Grand Rapids Plaster Co. ..... , " 109 



Works of the Buffalo Salt Co " 191 



* In pocket, in back of book. 



