[Wraparound] Finally, a directory Adjust Share By Harper’s Staff, This article is only available as a PDF to subscribers. Download PDF Tags 20th century Energy conservation Solar air conditioning Solar heating Solar heating, cooling, and energy conservation directory (Book) United States More from Harper’s Staff Harper’s index Letters No one looks the same Adjust Share Close < Previous Issue | View All Issues | Next Issue > June 1974 < Previous Issue | View All Issues | Next Issue > Table of Contents Close