668 
and how they raised a wide inner vallum, and upon that 
pitched their. tents, in order to raise them above the wet and 
damp of the surrounding subsoil, instead of, as in drier 
situations, fixing them in the centre of their camp. There 
is one observation I wish to make, which I have never seen 
alluded to elsewhere, and this is, that it appears to me as if 
all their measurements were a multiple of 3. 
You will notice that near the gateways the mounds for the 
tents of the guard are peculiarly distinct. These are always, 
as near as I can determine, 12 by 9 feet. Last year, in 
Germany, I paid a visit to Drusus's camp, on the Taunus ; 
and having the notes of the Sutton camp in my pocket- 
book, I was surprised to find that the guardrooms there, on 
each side the gate, — which are singularly perfect, being 
built of stone, — are also 12 by 9. There also, after the 
inner rampart, as here, a fosse ; then a second rampart, on 
which the Romans ofttimes placed stakes ; then, as here, a 
second fosse ; and, outside, a smaller rampart. It was to 
me most satisfactory to be able to test, on a large scale, the 
similarity of measurements, and arrangement of ramparts 
and fosse, in two camps at so great a distance one from the 
other; one in a morass in South Yorkshire, and the other 
on a mountain in the Taunus. 
This most remarkable camp, called the Saalburgh, is on a 
spur of the Taunus * I have never heard mention made of it 
in England, nor have I seen any account of it in archaeological 
journals. The existence of this camp shows how near we may 
be to the largest and most important Eoman remains, and yet 
not happen to light upon the spot. It is only a few years since 
that a new roadway cut into and laid open the camp. The 
excavations were followed- up, to a certain extent, and the 
* "Germanus led himself as many legions (four), with double the number of 
allies, and erected a fort on Mount Taunus, upon the site of one raised by his 
father." — Tacitus, b. i., c. 50. 
