When preparing to view a specimen under a microscope, we first must ensure that the ________ is all the

way lowered, and that the ___________objective lens is in place. After adjusting the ocular lenses and the

light intensity (if necessary), we then use the ___________ adjustment knob to raise the stage until the

specimen is viewable. Once in focus, the 10X ___________ lens can be moved into place. At this point,

we use only the ______________ to move the stage up slowly and avoid damaging the lenses. After

bringing the specimen into focus on this magnification we can switch to the 40X, and again use only the

fine adjustment knob to adjust the image into focus. To proceed to the 100X objective lens,

_________________ must be used to properly focus the specimen at this magnification, and avoid

damaging the 100X lens. Always clean the oil off the lens using ________________.