TY - JOUR AU - KING, R. J. AB - IT is important in the ultra-violet microscopy of biological material to be able to search for and focus the specimen with visible light so that ultra-violet irradiation can be kept to a minimum. As the material examined is normally unstained, little detail can be seen using conventional illumination with the microscope. TI - A Phase-Contrast Searcher for the Burch Reflecting Microscope JF - Nature DO - 10.1038/173220b0 DA - 1954-01-30 UR - https://www.deepdyve.com/lp/springer-journals/a-phase-contrast-searcher-for-the-burch-reflecting-microscope-heWloXrtl8 SP - 220 EP - 221 VL - 173 IS - 4396 DP - DeepDyve ER -