A corridor runs around each story of the khan, and the rooms open upon this corridor.
"Under one of the stair-ways there is a room for the Tartar postilions who care for the horses of travellers. With their round caps, loose garments, and long pipes they formed a picturesque group around a fire
A TARTAR KHAN.
where one of their number was watching the boiling of a pot which probably contained their dinner.
"In the last few years Astrachan has developed quite an important trade in petroleum, in consequence of the working of the wells at Baku, on the western shore of the Caspian. Steamers and sailing-vessels bring it here in immense quantities, and from Astrachan it is shipped by the Volga to all parts of Russia, and also to Germany and other countries. There are several machine-shops for the repair of steamships, steamboats, and barges engaged in the oil trade. The oil business of the Caspian region is growing very rapidly, and promises to make a serious inroad upon the petroleum industry of the United States.
"There is a line of steamers on the Caspian Sea for the transport of petroleum; they are constructed with tanks in which the oil is carried in bulk, and their engines are run by petroleum instead of coal. Their accommodations for passengers are limited, but as the voyage is made in a
