Philosophical transactions
Philosophical Transactions is a scientific journal issued by the Royal Society of London, published in London from 1665 for natural philosophers and the learned public. Its plates are pencil and ink drawings of plant tissue under magnification, cells and sections labelled with letters, alongside geometric construction diagrams of circles and curves. A designer might take the precise lettered labelling, the pale tinted paper and the fine hatched line work as a model for technical diagrams.
