Richards Ellen Swallow

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Ellen Swallow Richards

Rich·ards

 (rĭch′ərdz), Ellen Swallow 1842-1911.
American chemist and educator whose research on water quality led to the establishment of the first modern sewage treatment plant, and who founded the discipline of home economics.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Rich·ards

(rĭch′ərdz), Ellen Swallow 1842-1911.
American chemist and educator. Her survey of water quality in Massachusetts led to the establishment of the first water quality standards in the US and the first modern sewage treatment plant.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.