262 



HENRY C. MCCOOK. 



much of the time hourly observation, for the obvious reason that 

 thus I could become "acquainted" with the workers, could trace the 

 work done, and confirm or condemn previous conclusions as the case 

 might be. In this hill a track had been made by one of a herd of 

 cattle grazing in the field. The foot of the steer had left an irregular 

 depression, measuring 9 inches each way, in depth 8 to 9 inches, the 

 lower margin being 6 inches from the base of the hill. 



Engineering.— The lower part of this track is shown at Fig. 8, 

 in order to exhibit what seems very much like a deliberate and well 

 planned system of engineering, in filling up the hole. The drawing 



Fig. 2. — Covering a double gallery a, a, a, and chambers, c, c, c. 



is one-half natural size. At A, a, the original hill is shown, mark- 

 ing the southern limit of the foot-print. The work of filling up 

 against this had begun. From the lower point A, marking the out- 

 line of an arc, were the following works: b, a circular column 1 inch 

 high, from the upper base of which, a broad bifurcated plateau was 

 being extended; next to this was an oblong mound c, ^ inch high, 

 and beyond that, marking the opposite limit of the track, a lunette d, 

 1 inch high. Beyond this, toward the base of the hill, and parallel 

 with the arc i, c, d, was thrown an arc of like but smaller lunettes 

 i, I, i. At e and y, were lunettes similar to d, and at g, a scolloped 

 mound. These elevations, with that at />;, k, surrounded the cavern It. 

 which was the deepest part of the cattle-track. The plan of opera- 



