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
Creatures of Impulse Creatures of Impulse Creatures of Impulse is a stage play by the English dramatist W. S. Gilbert, with music by the composer-conductor Alberto Randegger, which Gilbert adapted from his own short story. Both the play and the short story concern an unwanted and ill-tempered old fairy who enchants people to behave in a manner opposite to their natures, with farcical results. The short story was written for "The Graphic"<nowiki>'</nowiki>s Christmas number of 1870, and the play was first produced at the Court Theatre on 2 April 1871. It originally included six songs, but three were eventually cut, and some productions