text:  Though a considerable trade now exists with the African coast scarcely any commercial intercourse has yet been established with the interior of Arabia (notwithstanding the friendly dispositions evinced by the Iman of Sana ) the road being barred by the hostile tribes--and a further impediment to improvement is found in the dissensions of the civil and military authorities of the place itself who pent up in a narrow space under a broiling sun seem to employ their energies in endless squabbles with each other