Rudolf Zuber was born on Sepetember 13, 1858 in Transylvania. He died on April 5, 1920 in Lviv. Having done a degree in Geology at the University of Lviv, he studied more to start his professional scientific career at this university in 1884. His main occupation was finding oil deposits. His experience was of high value for many oil companies and countries that made their development dependent on the oil industry. On his scientific journeys he reached every, apart from Australia, inhabited part of the world: in the years 1886-1892 he was doing research in Argentine (prospecting oil deposits near Mendoza). He visited Chile, Bolivia and Venezuela. In 1910 he was involved in oil prospecting in the British colonies of the West Africa – in Nigeria and Gold Coast (today’s Ghana) and also in the Ivory Coast. In 1909 he was invited to Krynica by dr Henryk Ebers. Doing 810m deep boreholes he discovered unique water that is numbered among the strongest in Europe alcaline acidic waters that can be substitute for healing waters of Vichy or Carlsbad. It is used in the treatment of hyperacidity, diseases of the digestive tract, bile ducts and diabetes. Water ‘Zuber’ is also known for its properties in alleviating the unpleasant symptoms of the alcohol abuse. It also contains lithium for which this water can be used as an antidepressant. During his expeditions he surveyed the regions and made geological maps of them. He was buried in the Łyczakowski Cemetery in Lviv.