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
The Creatures of Prometheus Beethoven exploiting instruments and coloristic orchestral effects that would never appear in his symphonies or serious dramatic overtures." Beethoven later based the fourth movement of his "Eroica" symphony and his Eroica Variations (piano) on the main theme of the last movement (Finale) of this ballet. The ballet requires the use of harp and basset-horn among the orchestral instruments. The Creatures of Prometheus The Creatures of Prometheus (), Op. 43, is a ballet composed in 1801 by Ludwig van Beethoven following the libretto of Salvatore Viganò. The ballet premiered on 28 March 1801 at the Burgtheater in Vienna and was given