SAN MIGUEL TO THE GULF OF URABÀ.
Sr. Gorgoza, a Granadian, represents that he has passed over this line, and found an altitude of one hundred and ninety feet. How this elevation was determined without a barometer or spirit-level is not clear. This part of the Isthmus is referred to in general terms by Humboldt, Fitzroy, and Trautwine, but as these authorities echo each other, the inference derives little additional strength from their concurrence.