Annals of the Astrophysical Observatory of the Smithsonian Institution
This is a scientific annual from the Smithsonian Institution's Astrophysical Observatory, published in Washington by the Government Printing Office around 1900 for astronomers and physicists recording solar and infrared measurements. Its pictures are plain, technical charts and photographs: spectrum curves with labelled absorption bands, a night-sky record strip, and a sunspot group photograph with a drawn coordinate line. A designer could draw on their thin black tracing lines, dense vertical striping, and grainy monochrome photographic textures for scientific diagram styling.







