Biological drawings

• What is the first step in preparing a specimen?

  Cut your specimen into a thin section
• What should be added to the slide after the specimen?

  Add water onto the slide
• What is used to cover the specimen on the slide?

  A cover slip
• What are the rules for completing biological drawings?

  • Use a sharpened pencil
  • Lines should be clear and single
  • No shading; use words for color
  • Arrange large enough for detail
  • Leave suitable margins
  • Labels must be neat and use a ruler
  • Do not cross lines
  • Title should identify the subject
  • Indicate magnification used
• eyepiece graticule is a glass or plastic disc with a scale on it, it is inserted into the lens of a microscope
• how to use eyepiece graticules

  calibrate the eye piece graticule against the stage micrometer