161app3_microscope

161app3_microscope - A3-1 APPENDIX IIIThe Microscope: Use...

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Unformatted text preview: A3-1 APPENDIX IIIThe Microscope: Use it WiselyYou will be assigned two microscopes to use during the course of this semester. Your stereoscope(from the Greek stereo, meaning "solid" and scop, meaning "observe") is useful for obtaining an overall, three-dimensional (stereoscopic) view of either an opaque or a transparent specimen at low magnification. Your compound microscope(Figure A3-1) is useful only with very thin, transparent materials (usually microslices of 3-dimensional objects) for study of fine details at high magnification. You will be using only your compound microscope in this laboratory exercise. When studying specimens under a microscope, you should routinely begin with the lowest magnification on the microscope and progress to the higher powers only as needed. In this manner, you will be able to relate small portions and details to the entire specimen. The microscope is an expensive instrument. Under no circumstances should you remove any part of the microscope or attempt repairs. If you have any difficulty operating your microscope, ask your instructor for assistance. If your microscope has missing, damaged or malfunctioning parts, report these to your instructor immediately. I. Proper care of the Microscope1. Your microscope is located in the table locker beside your chair. The storage areas allow very little clearance, so be careful not to damage the eyepiece when you remove and replace your scopes! 2. Your microscope is protected by a soft plastic dust cover which is quite slippery. Beforeyou attempt to lift your microscope out of its cabinet, remove the dust cover, fold it neatly and place it back in the cabinet. 3. Lift the scope in a vertical position to avoid unseating the ocular lens or loose filters. Place one hand beneath the base and hold the arm of the microscope with your other hand. Place solidly on your lab table. 4. Unfold the lamp cord, plug it in and switch the light ON to make sure the bulb works. Turn it on and off as little as possible to increase the life of the bulb. 5. Do not allow anything but lens paperto touch a microscope lens. Hard particles will permanently scratch the lens. You may use Kimwipes to clean dirty slides, but NEVER use them on microscope lenses! Even water can damage the system by entering the lens casing via capillary action. Never allow your objective to touch water on a slide, as this can cause extensive damage and necessitate expensive repairs....
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This lab report was uploaded on 04/18/2008 for the course BIL 161 taught by Professor Krempels during the Spring '08 term at University of Miami.

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161app3_microscope - A3-1 APPENDIX IIIThe Microscope: Use...

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