[8] Manuel Teles, A Contribuição Predial. Porto, 1914.
[9] The hectare = two and a half acres.
[10] They yield resin, are used for building throughout Portugal, and are exported for various purposes, including that of props in mines.
[11] A cork-tree is stripped once in ten years, yielding about £2.
[12] Notas sobre Portugal. Lisbon, 1908.
[13] Chiefly pine and oak, but also including ash, elm, poplar, nut, eucalyptus, acacia, etc.
[14] Joaquim Ferreira Borges, A Silvicultura em Portugal (in Notas sobre Portugal).
[15] Trees, as well as fish and game, suffered severely from the decree of King Manoel I, throwing open the private coutadas.
[16] In 1907 the roads in existence are given as 11,754 kilomètres (6,058 main, 5,180 secondary, and 516 by-roads).
[17] 15th April, 1914.