112-1: a fines de Agosto: the plural forms fines, mediados, and principios are used in indefinite reference to end, middle, and beginning of the month, year, etc.
112-2: Siquiera: at least.
112-3: por si quería: in case I wished.
112-4: Parry: the English explorer who made various Arctic exploring expeditions between 1811 and 1827.
112-5: Robinsón: Robinson Crusoe.