Helminthology Asmund Rudolphi, Otto Friedrich Bernhard von Linstow and Johann Gottfried Bremser started systematic scientific studies of the subject. The Japanese parasitologist Satyu Yamaguti was one of the most active helminthologists of the 20th century; he wrote the six-volume "Systema Helminthum". Helminthology Helminthology is the study of parasitic worms (helminths), while helminthiasis describes the medical condition of being infected with helminths. Helminthology studies the taxonomy of helminths and their effects on their hosts. The origin of the first compound of the word is the Greek "ἕλμινς" - helmins, meaning "worm". In the 18th and early 19th century there was wave of
Bleacher Creatures carried out at every game. The cowbell is primarily used to initiate a chant during a Yankees rally. After rapidly banging on the cowbell, and getting the attention of the Bleacher Creatures, Ousland plays a few notes on it, which the Creatures then imitate with claps. After repeating this several times, Ousland begins banging another few notes more rapidly, and the Creatures begin shouting "Oh-Ohhh!" in unison and moving their arms in a repetitive pointing motion. At the end, Ousland hits the cowbell three times, and the Creatures say "Yankee baseball. Mets suck. (visiting team) sucks. (Visiting team's right fielder)