ERIC ED541333: The Eyesight of School Children: Defective Vision as Related to School Environment, and Methods of Prevention and Correction. Bulletin, 1919, No. 65 (1920)

ERIC · leaf 45

An illustration from ERIC ED541333: The Eyesight of School Children: Defective Vision as Related to School Environment, and Methods of Prevention and Correction. Bulletin, 1919, No. 65, 1920, leaf 45 — Bulletin. i919. no, 6S fute io. bureau of education. A. HARMFUL BLACKBOARDS. ShM^ oontreit b6tw«en tong^used, ditcofored blackboard and the spi^lmen of natural slate.

ERIC Archive · Educational Environment · Human body · Physical Fitness · Vision Tests · Environmental Influences · Vision · Laws · Child Health · School Surveys · School Health Services · Prevention · Assistive Technology · Screening Tests · State Legislation · Supervision · Lighting · Color · Hygiene · Planning · Berkowitz, J. H

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More pictures from ERIC ED541333: The Eyesight of School Children: Defective Vision as Related to School Environment, and Methods of Prevention and Correction. Bulletin, 1919, No. 65

ERIC ED541333: The Eyesight of School Children: Defective Vision as Related to School Environment, and Methods of Prevention and Correction. Bulletin, 1919, No. 65 (1920)

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