Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 84
Stephensons Erecting Prism. STEPHENSONS ERECTING BINOCULAR. 39 … with some decided advan- Fig. 26. tages over the Nicol prism,except in being incapable ofrotation.—The great value ofthe Erecting Binocular con-sists in its applicability tothe picking-out of very minuteobjects, such as Diatoms,Polycystina, or Foraminifera ;and to the prosecution ofminute…
Microscopy · Biology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
