Write down the steps involved in the preparation of blood smear?

Explanation

The methodology for the preparation of blood smear is as follows.
  1. Place a drop of blood on a clean glass slide about 1cm from one end.

2. Using another glass slide placed at an angle of about `45^(@)` to the previous slide. 
3. Spread the drop of blood quickly in one stroke as a thin film.
4. Stain the film using Leishman's stain. 
5. Allow the slide to dry and wash the excess stain.
  6. Observe the slide under a light microscope.