The text describes the Teter river and its course, as well as the question of a natural cave called the Voronich cave, which lies within the boundaries of the settlement of Tryhury (three miles from Zhytomyr). In Tryhury stands a monastery probably founded by the Voronich family - in the cave of this name the family members were supposed to protect themselves during Tartar attacks (Source: "Tygodnik Illustrowany", Warsaw 1867, T:15, pp. 205-206, after: Digital Library of the University of Lodz).

A modernised reading of the text

The Cave of the Voronichs. Tryhury above Teterov near Zhytomyr.

The Teterow starts near the village of Borkowice, in Volyn province, in the Zhytomyr district, and, flowing past Cudnov and Zhytomyr, enters the Radomysl district, Kyiv province, where it flows into the Dnieper near the town of Kutychy. Having travelled for many miles, it only begins to be navigable from the village of Veprin, beyond Iliadomir, no more than a mile from the mouth. Leaving behind it the high beds of the Volhynian rivers, the Teterov heads not from south to north, according to the slope of the Volhynian ridge towards the Polesie lowlands, but from west to east. The plains it pours over rise above the level of the black sea to a mere 300 Parisian feet.

On Professor Eichwald's geological map, made during his 1825 travels in this area, we find two volcanic points marked near Teterov: two twin springs on either side of the river. And they fall more or less in the Trojan forests, one higher, on the right, at the very entrance to Ilyasychov, and a fourth closer to the mouth, near Radomysl.

The Teterov River flows through a sandy area for the most part; it has a narrow bed, densely strewn with granite rocks, and its banks are almost every step formed by picturesque views. Among their number is a rather large natural cave, called the "Cave of the Voronichs", rising within the borders of the small settlement of Tryhury, about three miles from Zhytomyr. The Tryhury settlement, squeezed into a small clearing in the middle of the forest and now owned by the treasury, is surrounded by the forests of the Trojanovsk estate, to which it must have once belonged.

Thirty years ago, it consisted of just a few peasants' cottages, which were moved to other treasury estates, and all that was left here was the old wooden monastery with a wooden church, and a new brick monastery with a church, as well as a house and a stage. A legend relates the beginning of the monastery to very distant times. Having no erection at hand, we cannot settle this question.

However, we must assume that there must have been a foundation of the Voronicz family, as indicated by the traditional name of the cave, in which members of this family were supposed to take shelter during Tartar invasions and other disasters. The first trace of the Voronicz family's ancestor can be found in a privilege granted by Alexander Jagiellon (we do not know the date), which armiunumciy Sigismund I, by a privilege issued in Brest on June 1, 1511, confirms.

Ivashko had two sons, Thomas and Ivashko. The first son's line had to be extinguished, but the second son gave rise to the family of John Paul Voronicz, archbishop, and his brother Wojciech, whose descendants are still alive today. In 1617, the sons of Vasyl Voronich, a Kyiv scribe and great-grandson of the first Ivashka, divided the Trojan estate between them, which, of course, must have belonged to this family before. Today, the estate is in the possession of the Dzialynski family.