The following points highlight the three main methods of permanent slide preparations. The methods are: 1. Safranin-Fast Green Combination 2. Crystal Violet-Erythrosin Combination 3. Haematoxylin-Safranin Combination. Method # 1. Safranin-Fast Green Combination: Method # 2. Crystal Violet-Erythrosin Combination: Use aqueous crystal violet stain in place of safranin and erythrosin in place of fast green in the method discussed above. Other [...]
In this article we will discuss about some instruments that are commonly used in a laboratory. Instruments for Field Collection: While you are on field collection trip, you should have the following instruments with you: 1. One pocket lens 2. One good fixative (F.A.A.) 3. Collection bottles (three dozen) 4. Full-sized blotting papers (three dozen) 5. Newspapers pieces [...]
In this article we will discuss about:- 1. Subject-Matter of Micrometers 2. Types of Micrometers 3. Exercise. Subject-Matter of Micrometers: Micrometry is the science in which we have some measurement of the dimensions of an object being observed under the microscope. The method employs some special types of measuring devices which are so oriented that these can well be attached [...]