John Bate, The Mysteryes of Nature and Art
“ How to make an image hang in the middle of a glasse. Make the lower part of the image of hard wax, and the upper part of wood, and overlay it with oyle colours; then put it into a globe glasse filled with fayre water, and which way soever you turne the glasse, the image will still hang in the middle, and stand as it were upright; which, to my knowledge, hath been a thing causing no small admiration among divers that have not understood the cause of it. ”
