Abstract
I HAVE read with considerable interest the letters on the above subject by Profs. Meek, Lewis, Drs. Orton, Pearsall, and others. The question of river pollution is a very large one, bristling with many difficulties. When the legal and technical obstacles of defining pollution have been overcome, one is still confronted with the greater difficulty of measuring it. It should be realised that pollution is only relative, and that the development of even unicellular phytoplanktonic species is dependent upon mineral constituents, and that these mineral constituents are largely determined by the vehicle of pollution.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
JOHNSON, J. [Letters to Editor]. Nature 113, 817–818 (1924). https://doi.org/10.1038/113817b0
Issue Date:
DOI: https://doi.org/10.1038/113817b0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.