In November, 1906, the President, accompanied by Mrs. Roosevelt, went to
the Isthmus of Panama, where he spent three days in inspecting the
work of building the Panama Canal, returning by way of Porto Rico.
The journey was taken on the naval vessel _Louisiana_, and many of his
letters to the children were written while on board that vessel and
mailed after reaching Colon.
On Board U. S. S. _Louisiana_, On the Way to Panama. Sunday, November
11, 1906.