Used poison bottle, you can use an empty coffee or glass jars of pickles; as long as the proper size, good sealing apply. Drugs used in drug vial can be divided into two kinds of deliquescence and volatile type. Deliquescence type drugs such as potassium cyanate (KCN) or sodium cyanate (NaCN) and other agents with poison, tile system of law for the first layer of about 0.2-0.5 cm fine sawdust at the tank bottom, with a wooden bar to compaction ; then a layer of about 0.2 cm of Pharmacy and be compacted in its spread; and finally the top and then covered with a layer of about 0.5 cm of fine sawdust, also be pressed. At this point the real insect specimens, then its top covered with a thin layer of gypsum crystals insect specimens and spray a little water on the gypsum powder, cured plaster surface after curing the best and then put a filter to struggling to prevent insect damage and plaster surface. Young specimens production of egg, larva, pupa specimens produced divided soaked, dried in two ways. Immersion with 75% alcohol, or 4% formaldehyde solution soaked. So that the parasite will not deform after soaking, before soaking, should first fixed, common methods are: Contrast large individual can be boiled with water or boiling water directly into the live worm parasites straight to slightly harder, then hot immersed in preservation solution. Smaller individual species, in order to prevent the loss of insect specimens material, can be fitted into a 75% alcohol solution to save the insect specimens in amber glass, heated with a water bath, also has the same effect. In addition to the above solution, but can also be used 15 parts of 80% alcohol, 10 parts of 40% formaldehyde solution, 1 part of glacial acetic acid prepared solution in preservation. This formula for the internal organization of the insect better fixation can be used as an insect anatomy saved for soaking. The disadvantage is that the long-term preservation of specimens easy to make darker, with a little precipitation. Big body for anatomical specimens (such as locusts, last instar silkworm larvae) can also be used syringe from the film festival between 4% formaldehyde solution for injection of live insects, the internal organs quickly fixed, and parasites stiff. Parasites after injection immediately immersed preservation solution. Amber insect specimens _ voyage teaching (certified) _ insect specimens provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) is an industry leader in Henan Xinxiang, specimen model years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the voyage instructional leadership with the staff warmly welcome all inquiries negotiations to create a better future teaching voyage.