What are the names of the ancient poems at the beginning of the letter?

Farewell to the viceroy and leave for Shu.

Farewell, my friend Chen-Li Jie

Farewell to Wei Wan-Li Jie

Farewell-Wang Wei

To Li, the envoy of Zizhou-Wang Wei

Farewell to a friend-Li Bai

Li and Wang, the prefect, were demoted to Gao Shi in Xiazhong and Changsha.

Liu Changqing, to the wise master.

Goodbye Li-Liu Changqing on the way home from Hanyang.

Send monks to Qian Qi.

Send Yang's Daughter-Wei

"Send Li Duan"-Lu Lun

That's about it.