Propolis season. Normally, it is dark brown in color, but it can be found in green, red, black, and white hues, depending on the sources of resin found in the particular hive area. Honey bees are opportunists, gathering what they need from available sources, and detailed analyses show that the chemical composition of propolis varies considerably from region to region, along with the vegetation. In northern temperate climates, for example, bees collect resins from trees, such as poplars and conifers (the biological role of resin in trees is to seal wounds and defend against bacteria, fungi and insects). "Typical" northern temperate
Danny Dunn and the Universal Glue a pair of pants was worth the lesson." McGraw-Hill MacDonald and Jane's Archway Books Pocket Books 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