Abstract
Introduction- Seismic Surveying Methods, Equipment And Costs In New York State- Seismograph Operations By Maine State Highway Commission- Some Limitations Of The Electrical Resistivity Apparatus- Application Of Geophysics To Highway Engineering In Michigan -Geophysical Equipment Usage In The Wisconsin Highway Commission Organization- Status Of Published Soil Surveys October 1, 1964 - Statistically Controlled Engineering Soil Sur¥ey