Tolong jelaskan mengenai Kekosongan (Lacunae) dari Codex Porphyrianus

Kisah Para Rasul 1:1-2:13; Roma 2:16-3:4; 8:32-9:10; 11:23-12:1; 1 Cor. 7:15-17; 12:23-13:5; 14:23-39; 2 Cor. 2:13-16; Kol. 3:16-4:8; 1 Tesalonika. 3:5-4:17; 1 Yohanes 3:20-5:1; Yudas 4-15; Wahyu 16:12-17:1; 19:21-20:9; 22:6–tamat.