The Royal Society has made their complete archives public, for a limited time. There's some absolute gems in there that are well worth it if you have a spare hour or so.
You can read such amazing things as Antony van Leeuwenhoek's articles on his experiments and observations with the newfangled microscope. After 2 months the archive closes again so be quick and relive the start of modern science, when men were interested in just about anything.
I'm not sure if the next link will continue to work so I'll post a screenshot of a small excerpt as well which shows the dedication to science a man like van Leeuwenhoek had.
An Extract of a Letter from Mr. Anthony Van Leeuwenhoek, to the R. S. Containing His Obseruations on the Seeds of Cotton, Palm, or Date-Stones, Cloves, Nutmegs, Goose-Berries, Currans, Tulips, Cassia, Lime-Tree: On the Skin of the Hand, and Pores, of Sweat, the Crystalline Humour, Optic Nerues, Gall, and Scales of Fish: and the Figures of Seueral Salt Particles, etc.
This is from 1693 by the way.