Heritage Open Day: Interested in Natural History in Northamptonshire? Want to look through a microscope? Want to handle local rocks and fossils? Interested in Astronomy? A keen photographer interested in more skills? Then visit us in our purpose built rooms. Founded in 1876, we are a society of 10 different interests from Astronomy to Zoology. Come to our own premises to look at our historic and varied natural history collections from local rocks and fossils, minerals, butterflies, moths, to plants and flowers. A rare chance to look through different types of microscopes at varied samples, and if the clouds keep away, look at the Sun safely through our Solarscope.