Prints of infrared aerial photographic survey showing heat and energy loss throughout Seattle. The flight includes 1250 images. Aerial Thermal Study.

Aerial photographs of the Skagit River in British Columbia taken prior to increasing the water height of Ross Lake Reservoir which resulted from completing step 3 construction of Ross Dam. The 70 exposures were shot from 12,000 feet by Aero Surveys, Ltd. of Vancouver, B.C. The photographs document the course of the river, topography of the area, and vegetation adjacent the river.