Philosophical transactions of the Royal Society of London
Philosophical Transactions of the Royal Society of London, a 1666 scientific journal published in London by the Royal Society for natural philosophers and learned readers. Its pictures are copperplate-style engravings of an apparatus: three upright vertical plates on a flat base, with a pendulum-like weight and cord at the front-left, drawn in fine parallel hatching with lettered reference points. A designer might take from them the precise, labelled technical diagram style and its strong hatched shading for line-based graphics.









