Instruments/Live-Spinning-Disk.md

@@ -80,7 +80,8 @@
 
 - Place a drop of the appropriate immersion fluid on the objective.
    - Plan Apo 20x Air:			None
-   - Plan Apo 40x Silicone:		Silicone (S on the cap)
+   - Plan Apo 40x Air:			None
+   - Plan Apo 40x Silicone (upon request):		Silicone (S on the cap)
    - Plan Apo 60x Oil:			Standard Oil (blue bottle)
    - Plan Apo VC 60x Water UV:	        Immersol W (W on bottle and cap)
    - Plan Apo 100x Oil:			Standard Oil (blue bottle)