TY  - ART
TI  - Micrographia : containing practical essays on reflecting, solar, oxy-hydrogen gas microscopes; micrometers; eye-pieces, &c. &c — Illustration, BHL page 35099668
PY  - 1837
UR  - https://www.biodiversitylibrary.org/page/35099668
ID  - page-35099668
ER  -