Le Plongeon's actual translation imaged in Google Books: Troano MS.

The following quotation is from Le Plongeon's translation of the famous Troano MS., which may be seen in the British Museum. The Troano MS. appears to have been written (hieroglyphed) about 3,500 years ago, among the Mayas of Yucatan, and the following is its description of the catastrophe that submerged the island of Poseidonis:--"In the year 6 Kan, on the 11th Muluc in the month Zac, there occurred terrible earthquakes, which continued without interruption until the 13th Chuen. The country of the hills of mud, the land of Mu was sacrificed: being twice upheaved it suddenly disappeared during the night, the basin being continually shaken by volcanic forces. Being confined, these caused the land to sink and to r' se several times and in various places. At last the surface gave way and ten countries were torn asunder and scattered. Unable to stand the force of the convulsions, they sank with their 64,000,000 of inhabitants 8060 years before the writing of this book."

http://books.google.com/books?id=gGBEwKdyLfMC&pg=PR42&lpg=PR42&dq=Troano+MS+Le+Plongeon&source=bl&ots=mxskJ5TJCd&sig=IFnaK1_u_FVkVWxSIeFHtgXvEoc#PPR42,M1