The continuation of the slope is the same, and the method of making roads in the serpentine style to reach a gate leading to the important part of town, is not only the common method employed for hill towns, but the natural and necessary one, not only in ancient times, but still today.
Through the courtesy of the Mayor and the Municipal Secretary of Palestrina, I had the only exact map in existence of modern Palestrina to work with. This map was getting in bad condition, so I traced it, and had photographic copies made of it, and presented a mounted copy to the city. This map shows these wall alignments and the changes in direction of the cyclopean wall on the east of the city. Fernique seems to have drawn off-hand from this map, so his plan (l.c., facing p. 222) is rather carelessly done.
I shall publish the map in completeness within a few years, in a place where the epochs of the growth of the city can be shown in colors.
I called the attention of Dr. Esther B. Van Deman, Carnegie Fellow in the American School of Classical Studies in Rome, who came out to Palestrina, and kindly went over many of my results with me, to this piece of wall, and she agreed with me that it had been an approach to the terrace in ancient times.