Table of Contents November 2010 Volume 49, Number 11 FEATURES Indiana Limestone How and why calcium carbonate, deposited over millions of years as marine fossils decomposed at the bottom of the sea, play a role in American architecture Levels and Measuring A showcase reviewing just a few of the measuring and leveling products that are available to our industry today Green Masonry Innovative, new products that enhance the traditional beauty and durability of masonry, while creating sustainable solutions for the building professional COLUMNS & DEPARTMENTS For the Record President's Message Government Affairs New Products Legal Issues Business Building Full Contact Project Management Classified Advertising NewsAbout: Tools