. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . A Wpetcd>ls

---

Size: 1082px × 2308px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiablakis