Antoni van Leeuwenhoek had what some might consider an unusual hobby for a Dutch cloth merchant in the 17th century: making simple but exquisite microscopes. His hometown of Delft in the Netherlands ...
MR. BECK has in this little book collected and set out in elementary form a considerable amount of information useful to the microscopist. The optics of the instrument are described in a simple manner ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results