Hourly solar radiation data for vertical and horizontal surfaces on average days in the United States and Canada /

Mode of access: Internet.

Manual of horizontal and vertical control monuments : MNC Midlothian - Natalie Creeks, Cook County, Illinois.

Provides location of monuments installed by the Office of Water Resources which indicate land elevation along Midlothian and Natalie Creeks.

Tabulation showing locations of subways and highway bridges with posted loads and limited vertical and horizontal clearances on marked U.S., interstate and Illinois state routes /

Cover title: Vertical and horizontal clearances of structures.

Vertical and horizontal clearances of structures & load limit, roads and bridges, on marked and unmarked state routes /

"February 1, 1972."