Mounting Media Application: A drop of mounting medium is placed on the specimen. This medium acts as an adhesive and may also provide refractive index matching. Coverslip Placement: The coverslip is carefully placed over the specimen to avoid air bubbles, which can obstruct the view. Drying: The slide is allowed to dry, ensuring the coverslip adheres firmly to the slide. The drying time depends on the type of mounting medium used.