and so on. To write the number four, it is necessary to subtract one from five, resulting in IV. Similarly, to write the number nine, one would subtract one from ten, resulting in IX. XX number stands for 20 th
Plate 79 (LXXIX) Eastern Kingbird 19 1/2 x 12 1/4 Plate 80 (LXXX) Water Pipit 12 1/8 x 19 3/8 Plate 81 (LXXXI) Osprey 38 1/4 x 25 5/8 Plate 82 (LXXXII) Whip-poor-will 25 3/4 x 20 3/4 Plate 83 (LXXXIII) House Wren 19 1/2 x 12 1/4 ...