The principal port of Lower California is La Paz, situated near the mouth of the gulf. The bay on the shore of which the town is located, is of great extent and beauty, and possesses a large number of rich pearl oyster-beds--the pearl fishery having at one time supplied the chief article of traffic on this part of the coast. The country around the bay is elevated and picturesque, though rugged; the soil being composed principally of rock and sand, wildly and irregularly covered with the most prickly species of stunted bushes and shrubs of sunburnt hue. The town of La Paz is neatly built and presents a pretty appearance. The streets are lined with willow trees, and these meeting overhead, form a delicious shade during the heat of the day. The houses are all constructed of _adobés_, plastered white, and thatched with the leaves of the palm tree. The beach is lined with palms, cocoa-nut, fig and tamarind trees. La Paz was taken by the American volunteers during the war with Mexico, and considerable destruction of the orchards, gardens and houses of the town was the consequence. The harbor offers great advantages for a naval station, and such, doubtless, it will become. San José, the most southern town of Lower California, is situated about half-way between Cape San Lucas and Cape Palmo, on a sort of desert plain, extending from the beautiful valley of San José to the ocean. It is located about three miles from the beach, and is one of the strangest creations in the shape of a town imaginable. The heavy rains and freshets which occur in the wet season, in this region, render every elevation invaluable as a preservative against the dangers of sudden inundations; hence all the houses are built upon steeps, rocks, and hillocks, necessarily irrespective of order; so that, even in the most densely populated districts, barren hills, as yet unoccupied by dwellings, are frequently to be met with, with deep hollows in every part, converting mere visits into positive enterprises, in most instances both tedious and disagreeable. To these great natural disadvantages, the indolence of the inhabitants has added others, their common practice being to dig for _adobé_ clay at the nearest convenient spot, namely, for the most part, opposite their own doors; thus, one would imagine that the site of the whole town had been visited and disturbed by a succession of miniature earthquakes, which, whilst they had left the houses themselves unshaken, had heaved and perched them up in the most uncomfortable positions, and in the most inaccessible places. In the very centre of the principal street, which appears to have once upon a time been level, are three or four immense clay-pits, serving as a receptacle for dead dogs, cats, bones, vegetable refuse, and, in a word, every description of rubbish and nuisance a very dirty population can convey to or discharge in them.