Much of the Capitol building floors, including these stairs, is constructed using a combination of White Vermont marble and imported Italian Travertine marble. Marble was used in order to save on up-keep and would save the state money in the long run.
The milbemycins are a group of macrolides chemically related to the avermectins and were first isolated in 1972 from Streptomyces hygroscopicus. They are used in veterinary medicine as antiparasitic agents against worms, ticks and fleas.
Novobiocin: an antibiotic obtained from an actinomycete and used to treat infections by gram-positive bacteria. Source: WordNet 2.1. Novobiocin: Novobiocin is one of aminocoumarin antibiotics that were produced by the actinomycete Streptomyces nivens.