How the 67 Counties of Pennsylvania Got Their Names [1] That the names by which we know the sixty-seven counties of Pennsylvania were well chosen and fittingly bestowed must be apparent to anyone who has given even passing attention to the subject.
Step 7: Drain the mower oil. Remove the drain plug, and drain the oil into the container. When the oil stops dripping, replace the drain plug. Remove the drain sleeve or Arnold Siphon Pump.ou can use this sleeve to drain the oil from the engine's crankcase. Keep in mind that the instructions for changing the oil in your lawn mower model may be slightly different. 1  Print How-To. 2  Instructions.
Theobjective will get oil on it, and you will have to really clean it to get the oil off. The 10X can bereturned to, since the lens should not touch the slide anyway.4. Once through with the microscope, use the lens paper to wipe the oil from the 100Xobjective lens. Go DOWN into the algae and muck to get a really good sample of protozoa and algae. ï· Focus on the sample using 10X, then go to 40X (NOT 100X). Start with brightfield, thenswitch over to darkfield and phase-contrast (see directions below).