Rensselaer Republican, Volume 16, Number 35, Rensselaer, Jasper County, 8 May 1884 — The Best Microscopes in the World. [ARTICLE]

The Best Microscopes in the World.

S. Lockwood, naturalist, says: In the manufacture of Microscopes the United States are easily superior. For lenses Wales, Spencer, and Tolies have a world-wide reputation. The stand now in use everywhere is manufactured in Philadelphia. The optical lenses are the latest improvement made in the instrument. They were invented by Abbe. The latest important discovery in microscopy is the Bacilus tuberculosis by Koch. It has given rise to the •contagion theory of the disease of consumption now gaining ground among The posibilities of magnifying are not limited merely by the skill of the 1 lensmaker, but by the nature of light. I can conceive an organism so small that even light cannot give its image. Or if an object be an organism its parts will not deflect or reflect the waves of light. Moeller’s rulings on glass have been separated at 1-32000 of an inch. There is increasing interest in the work of the microscope. The New York society has a large and en thusiastic membership.