THAYER SCHOOL STUDENTS HEAR ROAD BUILDING TALKS

Mr. J. S. Crandell, consulting engineer for the General Tarvia Department of the Barrett Company of New York City, gave six lectures before the Thayer School last month.

The subjects and dates of the lectures were as follows: Wednesday, October 19, "Chemistry, Manufacture, and Control Testing of Refined Tars," illustrated by lantern slides; Thursday, October 20, "The Laboratory Tests to which Road Tars Are Subjected" and a demonstration of laboratory tests; Thursday, October 20, "The Construction of Pavements with Refined Tar," illustrated by motion pictures; Friday, October .21, "City Pavements of the Block Type, Including Wood Block Pavements," illustrated by lantern slides; Friday, October 21, "Wood Preservation," illustrated by lantern slides; Saturday, October 22, "Maintenance of Highways."