What has the author Robert Cavelier La Salle written?

Robert Cavelier de La Salle was an explorer, not an author. He is known for his extensive explorations of North America, particularly his journey down the Mississippi River and his attempt to establish a French colony in Texas. He did not write any published works.

However, there are several primary sources that document his life and explorations, including:

* The journals of his companions: Several members of his expeditions kept detailed accounts of their journeys, which provide valuable information about La Salle's explorations.

* Official reports: La Salle submitted reports to the French government about his discoveries and proposed plans for colonization.

* Letters: La Salle corresponded with various people, including French officials and family members, which provide insight into his motivations and experiences.

These primary sources have been studied and analyzed by historians to reconstruct La Salle's life and achievements.