When the ships were all ready to move up, I directed Mr. Gerdes (assistant in the Coast Survey) to proceed in the Sachem and makeappearance of what was once a most beautiful spot, that I ordered Mr. Gerdes and his assistants on the Coast Survey to make me an accurate pla steamer Sachem, having on board the Coast Survey party, under Mr. F. H. Gerdes, while making a reconnaissance of the river.
On reaching our he honor to transmit herewith a copy of the journal of Assistant F. H. Gerdes, United States Coast Survey, showing the services rendered to th. Secretary of the Navy.
Extracts from a report of Assistant F. H. Gerdes, commanding surveying steamer Sachem, to Professor A. D. Bache, ave done our duty.
Very respectfully, your obedient servant, F. H. Gerdes, Assistant United States Coast Survey.
Report of Joseph Harsome value, I remain,
Very respectfully, your obedient servant, Joseph Harris. F. H. Gerdes, Esq., Assistant United States Coast Survey.