Libertas was a Spanish-language companion journal to Liberty.

Vol. 1, No. 1 — 1 — 17 March 1888
Vol. 1, No. 2 — 2 — 7 April 1888
Vol. 1, No. 3 — 3 — 21 April 1888
Vol. 1, No. 4 — 4 — 5 May 1888
Vol. 1, No. 5 — 5 — 19 May 1888
Vol. 1, No. 6 — 6 — 2 June 1888
Vol. 1, No. 7 — 7 — 30 June 1888
Vol. 1, No. 8 — 8 — 8 September 1888