Studies in natural illumination in schoolrooms ...
By:  Prepared by direction of the surgeon general.
Contributors: Clark, Taliaferro, 1867-; Beal, Arthur Floyd, 1888-
Series: Public health bulletin,; no. 158, 188.
Publisher: U.S. Govt. Print Off.
Published: 1926
Place of publication: Washington
Language: eng
Subjects: School buildings -- Lighting.; Hagerstown (Md.) -- Public schools.
Notes: At head of title, pt. I-II: Treasury Department. United States Public Health Service ... --pt. III United States Treasury Department. Public Health Service ...
The illumination study was made at the Antietam school, Hagerstown, Maryland.
Table of contents: title: pt. I-II. A report on the observations of daylight illumination of selected classrooms of different orientation during the period of an entire school year, by Taliaferro Clark and A.F. Beal. 1926.; title: pt. III. Effect of clouds on daylight illumination and on daylight ratios, by A.F. Beal. 1929.