Hive management in early spring to speed up brood production. Propolis is another byproduct of the bee hive. Certain races of bees are more prone to using propolis. Propolis can be collected on special plastic propolis screens. The tendency of the bees is to use propolis as a glue to seal openings that are too small for a bee to crawl through. A propolis screen is usually put in place of an inner cover. It has small openings that are propolized by the bees. The propolis screen can be frozen which hardens the propolis. Once the propolis is frozen it can be
Danny Dunn and the Universal Glue Danny Dunn and the Universal Glue Danny Dunn and the Universal Glue is the fifteenth and final novel in the "Danny Dunn" series of juvenile science fiction/adventure books written by Raymond Abrashkin and Jay Williams. The book was first published in 1977. Professor Bullfinch develops a glue which is stronger than any known glue. He christens it "Irenium" in honor of Irene, of whom he is fond. The Blaze Chemical Company, which built a factory after draining a swamp, has leaked a chemical into the water which may cause the local dam to break. Danny, Joe and Irene use a