Specimens Specimens should be placed on biological hood number too large to store homemade glass Cabinet, to moisture, corrosion, dust, insects and rodents. Within the cabinet with silica gel or lime (with two layers of gauze wrap) as a desiccant, mildew insecticide formulation with camphor (wrapped with gauze). Specimens not long bare cupboard on top of dust. New stuffed specimens do not dry into biological hood. Fumigant can eradicate pests specimen plant seeds in the spring, the specimen placed in a sterile box, put the dishes in the box, put the bowl on top of plant specimens, bowl put sulfur, iron bars put on the bowl, lit sulfur, sealed cover. Two days later, open the lid, took into biological specimens stored in cabinets. The basic principles of biological specimens produced: the authenticity of the principles of biological specimens, biological samples if the loss of authenticity, then that value is gone. Typical principles of biological specimens; typical means you collect biological specimens must be able to reflect the most prominent feature of this species, and these features are the most obvious and telling. Biological integrity principle preschool herbarium specimens, a plant which mainly includes several parts, including a plant roots, stems, leaves, flowers, fruits and seeds, do not crippled plant specimens of biological specimens to scientific-based, artistic principles supplemented, in fact, is the authenticity of the principle of biological specimens. Herbarium specimens of plant seeds _ _ voyage teaching provided by Xinxiang City Teaching Equipment Co. voyage. Xinxiang City voyage Teaching Equipment Co. (www.xxyuanhang.cn) strong, credible, in Xinxiang specimen model industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the voyage into the brilliant teaching and you work for a better future!