Leeuwenhoek’s Specimens and Original Microscope Reunited; http://www.crassh.cam.ac.uk/blog/post/eye-to-eye-with-a-350-year-old-cow
Leeuwenhoek’s Specimens and Original Microscope Reunited; http://www.crassh.cam.ac.uk/blog/post/eye-to-eye-with-a-350-year-old-cow