Microscope Slides are often used in conjunction with Microscope Slides, which are thinner glass slides on which to hold microscope glass slides. On the microscope stage for the realization of slides for microscope, for precise, remote (e.g. in automatic/computer operation, or in moving places) contamination or low precision stage objects on the microscope stage, use fingers that would not fit). Mounting the specimen on a slides for microscope are often the key to successful observation. This problem has received a lot of attention over the past two centuries and is a well-developed field with many specialized and sometimes very complex techniques. Specimens are usually held in place using smaller cover slip microscope. The primary function of the coverslip is to flatten solid samples and shape liquid samples into flat layers of uniform thickness. This is necessary because the focal area of a high-resolution microscope is very narrow. slides for microscope usually has several other functions. It holds the sample in place (by the weight of the coverslip, or in the case of a wet mount, by surface tension) and protects the sample from dust and accidental contact. It protects the microscope's objective from the sample and vice versa; in oil or water immersion microscopes, the microscope cover glass prevents the immersion liquid from coming into contact with the sample. Coverslips can be glued to slides to seal the sample, prevent dehydration and oxidation of the specimen, and also prevent contamination. Many sealants are in use, including commercial sealants, lab preparations, and even regular clear nail polish, depending on the sample. A solvent-free sealant that can be used on live cell samples is "valap," a mixture of equal parts petrolatum, lanolin, and paraffin. Microorganisms and cell cultures can be grown directly on microscope cover slip before being placed on slides, and specimens can be mounted on microscope slide cover instead of slides for a microscope.