This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Experiments in the destruction of fly larvae in horse manure BHL. Experiments in the destruction of fly larvae in horse manure Text Illustration no biodiversitylibrary org title Cook Hutchison Scales The contributing institution believes that this item is not in copyright Biodiversity Heritage Library PDold Experiments