,• 



CONTENTS 



Lime and cement industries of New York, by Heinrich Ries Ph.D. 



Preface 640 



Origin of limestone 641 



Chemical composition 643 



Geologic occurrence 647 



Prospecting 648 



Color of limestones 650 



Mineralogic composition . . 651 



Uses of limestone ... 652 



Uses of lime 667 



Cement 677 



Geology of New York limestones 753 



Limestone occurrence by counties 769 



Cement industry in New York state 833 



Producers of lime and natural cement 839 



Producers of natural rock cement 847 



Chapters on the cement industry in New York, by Edwin C. Eckel C.E. 



A History of the Portland cement industry in New York state 849 



B Manufacture of Portland cement in New York state 860 



C Tests of cements, made by the state engineer 1897-1900 877 



D Key to tables of limestone analyses 892 



Tables of limestone analyses, by Heinrich Ries Ph.D 898 



Index 957 



