Last year, while browsing in the The Quaker Bookshop at Friends House on Euston Road in London, I happened across a copy of The Invention of Clouds : How an Amateur Meteorologist Forged the Language of the Skies¹ (Hardcover) by Richard Hamblyn. It's a biography of Luke Howard, a Quaker pharmacist and amateur meteorologist, who created the system of cloud classification² that we still use today³.
Last year, while browsing in the 
