Strejc-Vetterus was considered the next senior (the highest religious official within the Unity of the Brethren), succeeding Commenius but being too old he was only named consenior in 1663.
Salmon, a priest and literate, was born in village Podboří (now part of Lipník nad Bečvou) and studied in Bremen together with Strejc.
Both travelers left Bremen on 16 May 1613, and 23 days later, on 7 June, the ship landed in the western part of Iceland, in Nesvogur bay under the hill Helgafell.
Strejc published the account of the journey 25 years later, in 1638 in Polish under the name Islandia, álbo Krotkie opisanie Wyspy Islandiy.
The copy has 85 pages (each with 16-23 lines) size 11,5 x 18,5 cm and title Islandia, aneb krátké vypsání ostrova Islandu, v němž věci divné a zvláštní, v krajinách těchto našich nevídané, očitě spatřeny a některé od obyvatelův ostrovu tohoto hodnověmých slyšány i pravdivě poznamenány (Islandia, or a short description of the island of Iceland, where are found things curious and peculiar, without precedent in this our own country, eye-witnessed and faithfully recorded from the trustworthy inhabitants of the island) A German translation was published in 1640 (a print is preserved in Copenhagen).
Čeněk Zíbrt, a Czech publisher, reprinted the 1673 edition (with commentary and literary references about Strejc) in journal Světozor in 1893 (scanned pages: [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13] and [14]).
All three original versions were published as a book, with a commentary and analysis, in 1931 by Bohuslav František Horák (1881–1960), a historical geography professor from the Brno University.