Subject ASC00009vw
Recreative Science.
1, Page 334 (1860)
Natural History Museum Library, London
BHL Page 2539724
Keywords
Microscope slide measurement microscopy measurement prism light glass experiment microscopic lines engraving standard measurement magnification machine ruling microscope magnification 20 bands 50 diameters 500 diameters 800 diameters Friedrich Adolf Nobert test lines Microscopic view Increased microscopic view lines Slip of glass line Light bands spectrum