From Paul Whiteley, Bittaford, Devon, UK
The image of Woodhead Reservoir in Derbyshire, UK, made me wonder about possible uses for all that newly exposed, dried-up sediment that has been slowly filling the reservoir and reducing its capacity. Much of this stuff is good-quality soil biomass that is free or mostly free of artificial fertiliser, herbicides and insecticides. I would be delighted to have some on my garden(17 May, p 7).
