Julius Roger was a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 medical doctor

Physician

A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

, entomologist

Entomology

Entomology is the scientific study of insects, a branch of arthropodology...

 and folklorist

Folklore

Folklore consists of legends, music, oral history, proverbs, jokes, popular beliefs, fairy tales and customs that are the traditions of a culture, subculture, or group. It is also the set of practices through which those expressive genres are shared. The study of folklore is sometimes called...

 who worked in Ratibor

Racibórz

Racibórz is a town in southern Poland with 60,218 inhabitants situated in the Silesian Voivodeship , previously in Katowice Voivodeship...

, in Upper Silesia

Upper Silesia

Upper Silesia is the southeastern part of the historical and geographical region of Silesia. Since the 9th century, Upper Silesia has been part of Greater Moravia, the Duchy of Bohemia, the Piast Kingdom of Poland, again of the Lands of the Bohemian Crown and the Holy Roman Empire, as well as of...

, most notable for having arranged (and raised the necessary monies) to build hospitals in Groß Rauden

Rudy, Silesian Voivodeship

Rudy , also known as Rudy Wielkie or Rudy Raciborskie, is a village in the administrative district of Gmina Kuźnia Raciborska, within Racibórz County, Silesian Voivodeship, in southern Poland. It lies approximately east of Kuźnia Raciborska, north-east of Racibórz, and west of the regional...

, Pilchowitz

Pilchowice, Silesian Voivodeship

Pilchowice is a village in Gliwice County, Silesian Voivodeship, in southern Poland. It is the seat of the gmina called Gmina Pilchowice. It lies approximately south-west of Gliwice and west of the regional capital Katowice....

, plus the current public hospital in Rybnik

Rybnik

Rybnik is a city in southern Poland, in the Silesian Voivodeship. Rybnik is located close to the border with the Czech Republic and just outside the southern border of the largest urban area in Poland, the Upper Silesian Metropolitan Union...

 .

He is also notable for collaborating with entomologist Ernst Gustav Kraatz

Ernst Gustav Kraatz

Ernst Gustav Kraatz was a German entomologist.Kraatz was born in Berlin on 13 March, 1831 and died in the same city where he was a Professor at the University of Berlin. He was mainly interested in Coleoptera...

, contributing to Gustav Kraatz's founding German Entomological Institute collections; for identifying and discovering over 400 new species of beetles plus other insects; and also for collecting folk songs (a collection of 546 songs huntsmens songs, pastoral and farmers songs, Gypsy songs, ballads, and love songs)