Keywords: FMIB 35033 Treating pond with copper sulphate for killing algae Laborer is dragging a small bag of the chiemical through the water by means.jpeg check categories 12 September 2015 3 Treating pond with copper sulphate for killing algae Laborer is dragging a small bag of the chiemical through the water by means of a pole Subject Fish ponds Mosquitoes--Control Tag Limnology 1920 Cite book Fishes in relation to mosquito control in ponds Hildebrand Samuel F Washington DC Government Printing Office 1920 Report of the United States Commissioner of Fisheries for the Fiscal Year 1918 with Appendixes Plate III fig 9 Creator Samuel Frederick Hildebrand PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 35033 Images from the Freshwater and Marine Image Bank to check Samuel Frederick Hildebrand Fish ponds Limnology |