In process of time the town extended down into these valleys, and then to the other hills beyond them. Then bridges were built here and there across the valleys, to lead from one hill to another, and tunnels and other subterranean passages were made, to connect one valley with another, until, finally, the town assumed the very extraordinary appearance which it now presents to view. Besides the hills within the town, there are some very large and high ones just beyond the limits of it. One of these is called Arthur's Seat, and is quite a little mountain. The path leading to the top of it runs along upon the crest of a remarkable range of precipices, called Salisbury Crags. These precipices face towards the town, and together with the lofty summit of Arthur's Seat, which rises immediately behind them, form a very conspicuous object from a great many points of view in and around the town.

Unfortunately, however, none of this exceedingly picturesque scenery could be seen to advantage by our party, on the day that they arrived in Edinburgh, on account of the rain. All that they knew was, that they came into the town by a tunnel, and when they left the train at the station they were at the bottom of so deep a valley that they had to ascend to the third story before they could get out, and then they had to go up a hill to get to the street in which the hotel was situated.

The name of this street was Prince's Street. It lay along the margin of one of the Edinburgh hills, overlooking a long valley, which extended between it and Castle Hill, on which the town was first built. There were no houses in this street on the side towards the valley, but there were several bridges leading across the valley, as if it had been a river. Beyond the valley were to be seen the backs of the houses in High Street, which looked like a range of cliffs, divided by vertical chasms and seams, and blackened by time. At one end of the hill was the castle rock, crowned with the towers, and bastions, and battlemented walls of the ancient fortress.

The boys went directly to their rooms when they arrived at the hotel, and while Mr. George was unstrapping and opening his valise, Waldron and Rollo went to look out at the window, to see what they could see.

"Well, boys," said Mr. George, "how does it look?"

"It looks rainy," said Rollo. "But we can see something."

"What can you see?" asked Mr. George.

"We can see the castle on the hill," said Rollo. "At least, I suppose it is the castle. It is right before us, across the valley, with a precipice of rocks all around it, on every side but one. There is a zigzag wall running round on the top of the precipices, close to the brink of them. If a man could climb up the rocks he could not get in, after all."

"And what is there inside the wall?" asked Mr. George.

"O, there are ever so many buildings," said Rollo—"great stone forts, and barracks, and bastions, rising up one above another, and watch towers on the angles of the walls. I can see one, two, three watch towers. I should like to be in one of them. I could look over the whole city, and all the country around.