BAUM WORKS. PAL | 
For the arm leading to large circle (given only in part here) begin at 
station e at the north corner of the square, and run as follows: 
Survey of arm connecting circle and square. 
Station. Bearing. Distance. Remarks. 
as | Feet 
CARO Simcoe)! tes Gal) glee Drees ces Rootes nda cene eee ee 102. k indicates the point where the arm 
| connects with the square. 
Te LOMA RS ele OOH aecemce cc Savon See ieie = silo: scissile 5+ 
Lite ate mOorel. Bers sstecn RO BOD EDO CIDER BRD OES IOaS 50 
PATIOS! =peal| SS EPN2IN 363 ca Suscne nce Soe se Bone SOGeae 50 
3tol so GS WU oie snesodoapedo 76 dame conotdesare 145 1 indicates the end of the portion 
of the arm shown in the figure. 
Check lines. 
TEC Ba SNe 50 2TH eee «nds een Seseoee | 1,112 
RALOLC Ree Nin dat Betas cc o.3.6 sicininineteisisieisinieseeinia ae J, 58 
Pro ee Sa 30 OO... . cee nee as | 1, 124 
| 
The angles at the corners are — 
Oh, SAREE ests 90° 47’ Caen ttatals Sar sce 90° 04° 
Cie ares cea tcie ie 6 88° 20° USES CCA DOORS OR SE 89° 40! 
It is apparent from these notes and P]. XI, representing this inclosure, 
that it approximates very closely a true square. The greatest variation 
at the corner from a right angle is only 47’... Theaverage length of the 
sides is 1,117 feet, from which the extreme variation is only 12 feet, the 
difference between extremes being but 21 feet. 
As the structure and contents of the few mounds which appear to be 
connected with these works may have some bearing on the question of 
the origin, age, and uses of the circles and squares, the description will 
be given here of one connected with the Baum works just mentioned, 
which are those figured in No.1, Pl. xx1 (see Fig. 3 hereof), Ancient 
Monuments. The mound referred to is that designated in this figure 
as a “Square pyramidal mound.” It was carefully explored by my as- 
sistant, Mr. H. L. Reynolds, whose report is as follows: 
THE ‘‘PYRAMIDAL MOUND,” BAUM WORKS. 
This mound is distant from Mr. Middleton’s station No. 28 in his recent 
survey of these works N. 21° 30’ W. 1,420 feet. In the work of Messrs. 
Squier and Davis the height is given as 15 feet and diameter 125 feet. 
Its present height is 12 feet above the level of the surrounding surface, 
and its present diameter from 135 to 140 feet. This difference is due to 
the annual disturbance of its surface by plow and freshet. The same 
agencies have likewise destroyed its pyramidal form, and it resembles 
now, instead, an upturned wash basin. The mound was composed for 
the most part of clay mottled considerably with black loam and slightly 
in some places with patches of agrayish plastic lime. Two ecross-trenches 
were sunk due north and south and east and west, respectively. The 
