1601 | Cyanophyte, |
1602 | Hydrurus, |
1603 | Resting spore |
1604 | Green algae, |
1605 | Flow protection criteria for adult salmon - phase 3 case studies |
1606 | Fragilaria, |
1607 | Fisheries statistics 1994 : salmonid and freshwater fisheries statistics for England and Wales |
1608 | Herbarium Image: Oenanthe lachenalii |
1609 | Herbarium Image: Carex nigra |
1610 | Herbarium Image: Potamogeton filiformis |
1611 | Welsh sheep dip monitoring programme : 1999 |
1612 | Herbarium Image: Juncus bulbosus |
1613 | Herbarium Image: Galium palustre |
1614 | Herbarium Image: Dactylorhiza incarnata |
1615 | Upgrading of Nox Reduction Equipment Fitted to Large Fossil Fuel Power Station Boilers |
1616 | Marine phytoplankton : standard methodologies: final draft : biology laboratory procedures manual. Section C : test methods and procedures |
1617 | Herbarium Image: Ceratophyllum demersum |
1618 | Herbarium Image: Ranunculus peltatus |
1619 | Herbarium Image: Festuca arenaria var. arenaria |
1620 | River quality : July 1991 - June 1992 |
1621 | Herbarium Image: Chara vulgaris |
1622 | Mallomonas, |
1623 | Synedra, |
1624 | Herbarium Image: Osmunda regalis |
1625 | Herbarium Image: Hieracium murorum |