Complex sentence: That request was not fulfilled and a proclamation issued giving Vernet the authority to act with his own means, the Argentine historian Ricardo Caillet-Bois indicates he was provided with 4 x 8 pdr cannons and 50 rifles, plus blacksmithing tools.
Split into simpler sentences: That request was not fulfilled and a proclamation issued giving Vernet the authority to act with his own means. He was provided with 4 x 8 pdr cannons and 50 rifles, plus blacksmithing tools.