Returning to Warsaw, in 1874-75 he was editor-in-chief of the popular Polish-language periodicals, Niwa (The Field) and Opiekun Domowy (The Home Companion).

His most popular works included Wstęp i pogląd ogólny na filozofię pozytywną (An Introduction to, and Overview of, Positive Philosophy, 1872) and Jak należy badać duszę?

In 1872 he wrote: "We shall call a Positivist, anyone who bases assertions on verifiable evidence, does not express himself categorically about doubtful things, and does not speak at all about those that are inaccessible.

"[3] He experimented with microphones and with apparatus for sending sound and light over distances, and so is regarded a precursor of radio and television.

In 1877 Ochorowicz elaborated a concept for a monochromatic television, to be constructed as a screen comprising bulbs that would convert transmitted images into groups of light points.

Brevet de quinze ans , 29 avril 1885 ; docteur Ochorowicz, à Paris , boulevard Saint-Germain , nº 24.

[11] Also in 1893, Ochorowicz introduced Prus to the Italian Spiritualist, Eusapia Palladino, whom he had brought to Warsaw from her mediumistic tour in St. Petersburg, Russia.

Lodge, Myers and Richet disagreed, but Hodgson was later proven correct in the Cambridge sittings as Palladino was observed to have used tricks exactly the way he had described them.

[14] After Ochorowicz's wife left him, he decided to make some changes in his life: he bought a piece of land at Wisła in Poland's mountains, built himself a villa as well as four additional houses for tourists, and proceeded to live on the rentals.

In July Prus traveled to nearby Kraków, where until the beginning of September he underwent treatments for his multifarious medical complaints by an ophthalmologist, a neurologist, and a physician who treated his thyroid.