A total of 146 Propertius manuscripts survive, the oldest of which dates from the 12th century. However, some of the poems in these manuscripts appear disjointed, such as I.8, which begins as a plea for Cynthia to abandon a planned sea voyage, then closes with sudden joy that the voyage has been called off. This poem has therefore been split by most scholars into a I.8a (comprising the first 26 lines) and I.8b (lines 27-46). More complicated organizational problems are presented by poems like II.26, a confusing piece in which Propertius first (1) dreams of Cynthia being shipwrecked, and then (2) praises Cynthia's faithfulness. Following this, he (3) declares that she plans to sail and he will come along, (4) shifts to the couple together on the shore, and then (5) quickly has them back on-board ship, ready to face the potential dangers of the sea. The images seem to conflict logically and chronologically, and have led different commentators to rearrange the lines or assume some "lacuna" in the text.