IV. From Besançon to Pontanier (Abiolica)--a beautiful bit of railway. The Doubs is crossed twice, when views are obtained of Arguel and Montferrand, and the modern châteaux of Torpes and Thoraise. The Loue is crossed at Mouchard; fine view of the ruins of Vaugrenant. After leaving Mouchard, the traveller enjoys a succession of vast prospects of the vineyard region of the Jura--Aiglepierre, Marnoz, Arbois, &c. After the vines, come the pinewoods and the splendid forest of Joux. After the pinewoods generally come the peat-fields, or _tourbières_, of Chaux d'Arlier, traversed by two rivers which here meet, the Doubs and the Drugeon. Lastly, Pontarlier is reached, eight hundred and seventy yards above the level of the sea, anciently a confederation of nineteen villages, called _la baroichage_.
V. From Besançon to Dôle. Four routes are here open to the traveller; 1st. The Roman road leading formerly from Vesontio to Cabillorum; 2nd. the _route de Paris_; 3rd. the railway--Dijon line; 4th. the canal, from the Rhône to the Rhine. All these ways of communication follow the valley of the Doubs. The great forges of Fraisans, and the Roman station of Crusinia, are to be seen on the way. To the right of this is a huge mass of granite in the midst of the Jurassic formation. Dôle is the second city in Franche-Comté, and houses are to be seen there. The public library is also worth a visit.
VI. The fortress of Joux and the Swiss routes. Two fortresses protect the Swiss frontiers, Joux and Larmont. The former merits a visit. The cells are seen in which Toussaint l'Ouverture, Mirabeau, the poet Kleist, and other illustrious prisoners were confined. In the neighbourhood of Joux are high mountain peaks from which magnificent views are to be had. Many interesting excursions to be made in this neighbourhood.
VII. The Falls of the Doubs, Morteau, and Montbenoît. Start from Morteau, visit the Falls and Lakes, also the _Cols de Roches_. Proceed to Montbenoît by the river Doubs. See the splendid rock at Entreroches. The church of Montbenoît is one of the historic monuments of France; here are to be seen statuettes and sculptures in wood, the work of Florentine artists in the sixteenth century, employed by the Abbé Carondelet, friend of Raphael and Erasmus.