The previous page is sending you to https://www.alamy.com/the-principles-of-bacteriology-a-practical-manual-for-students-and-physicians-bacteriology-190-bacteriology-32-the-stem-of-which-is-bent-to-an-angle-of-about-110-with-the-long-axis-of-the-body-the-larger-part-of-the-aerobioscope-is-divided-into-squares-to-facilitate-the-counting-of-the-colonies-by-the-employment-of-this-apparatus-one-can-make-these-analyses-at-any-place-and-can-without-fear-of-con-tamination-carry-the-tubes-to-the-laboratory-where-the-cultivation-part-of-the-work-may-be-done-fis-32-aside-from-this-advantage-the-use-of-a-vacuum-cylinder-permits-a-known-vol-image232433310.html.

 If you do not want to visit that page, you can return to the previous page.