To that rude scientist in dim historic time who first acquired the knowledge of a simple lens, how strangely must have come the wizardry of magnifying-glass. Before his wondering eyes his hand was ...

Small modifications to an ordinary optical microscope have helped turn it into a powerful instrument that can be used for studying complex cellular biology in real time at the nanoscale level. And ...

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 ...