CORRECTION

CORRECTION:

The molecular formula for acrylonitrile that appeared in April’s Chemical Data Notebook Series article should have indicated a triple rather than a double bond between the nitrogen and carbon atoms. The correct formula is:

H H C C H C N

David Rhodes, Jerry Tracy, and Jack J. Murphy

In The Books: High-Rise Buildings: Understanding the Vertical Challenges

David Rhodes discusses the comprehensive book High-Rise Buildings: Understanding the Vertical Challenges with authors Gerald Tracy and Jack Murphy.
Mason City (IA) Recycling Fire

Building Severely Damaged in Mason City (IA) Recyling Fire Friday Night

A large building at Mason City Recycling Center was heavily damaged in a fire Friday night.