1801 | Environment Agency guidance on the conditioning of intermediate level waste |
1802 | Herbarium Image: Nasturtium officinale |
1803 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
1804 | Herbarium Image: Potamogeton berchtoldii |
1805 | Scytonema, |
1806 | Herbarium Image: Undetermined |
1807 | National Demand Management Centre annual report 1994/95 |
1808 | Quality audit of biological samples for the 1991 river quality survey |
1809 | Tribonema, |
1810 | HIDDEN-DP-WHPearsall-001.tif |
1811 | Cladophora-ball, |
1812 | Xanthidium, |
1813 | Herbarium Image: Lythrum portula subsp. longidentata |
1814 | Euglena, |
1815 | Disposal of sewage where no mains drainage is available -Environment Agency- |
1816 | Oedogonium, |
1817 | Upper Lee catchment management plan : consultation report summary : March 1994 |
1818 | Herbarium Image: Huperzia selago |
1819 | Herbarium Image: Chara globularis |
1820 | Unknown chytrid |
1821 | Closterium, |
1822 | Stigeoclonium, |
1823 | Cosmarium |
1824 | Staurastrum |
1825 | Dictyosphaerium, |