26 GEOMETRICAL EARTHWORKS OF OIIIO. 
The survey was in fact made by triangulation; the angles being as 
follows: 
BN ries (7a ae 4 ES PS ER Ring bot SRO 88° 38’ 
Ab iO: CARDEN Ey, core ree eae es oe ee er 90° 05’ 
IN RON GROG NN ARSE SG Obie Sc: CRIA O EO Ge OxomuSHe Nes &99° 47' 
PRIMM GUMS SOR AS ORS ao CE aOR en Cate SAE eo soe, pee Coy 
PN Hate CCRC ® So OSS a otetichss, COCR AIEEE Bice eae ece 1e2°RAG. 
The angles at aand d, using the direct line between them, are as fol- 
lows: 
ENR TINCG ZO) ere mies Sone gc a he 90° 06! 
FNULNU, 20D GeO Ce SECIS SOG Shc Sie CREM EIEA coca eee 90° 02! 
The following are the check lines: 
Feet 
Diag ONAL LOM. tO 6 Ne Oo: AO Meee. = ware aan © eeaie cis) aials oa SES eee 1, 566 
Dia gomaletromel MO .- ck Ge eee Cie one tees oo oe es oem os nee ae 1, 561 
Diameter runoinomortheash and southwest. «a... sceeehes <2. cee seers 1, 095 
Diameter extended to the direct line between a and @d................---. ---- Lge 
Diameter runnin oe northywestiand: soubheasbees. 2 sacs ce eee = pees. Soe 1, 104 
These diameters are measured from the middle of the gateways in 
the sides. 
THE BAUM WORKS. (ANC. MON., PL. XXI, NO. 1.) 
Although a complete resurvey of these works was made it is not 
thought necessary to introduce here the notes relating to any part 
except the square. We may remark, however, that the resurvey of 
the circular portion revealed no very essential variation from the figure 
given in Ancient Monuments. 
The square, most of which has long been ina pasture, is rather more 
distinct and prominent than such remains usvally are, the walls being 
from 2 to 4 feet high and the gateways well marked, though no traces 
of the inclosed mounds remain. The circular portions of the works are 
much worn, and two sections of considerable length are so nearly obliter- 
ated that the line can not be traced through them with any certainty. 
Mr. Middleton’s field-notes relating to the square are as follows, 
commencing at station a at the western corner: 
Survey of the square of the Daum works. 
| 
| | Length 
Sey ena | Tsctanan | Width of | of sides 
Station. | Bearing. | Distance. | wall. | (whole 
| | | | length). 
| 
Fre Feet. | Feet. | Feet. 
DiLOVOP eal Ne ID Dial By heer obec noo ca tai ie ara mica mre aya piecere eicle | ere meen eee 551 | 492) ; 
BiG e scl NobOtNT Hine: Sate Benne Sock wanes eae Oe BST |g fabs beeng 
CUOMO Ase) | eds. 0 A HEL coe oe crac re ak Ee Ne See nee peter ee 561 | 50 2) 1.129 
Oe aad |amavo Onl oN ser ctjoe stro s ome g daneisaiterre sistetice cee ecco teimcieee 568 | 395 5 | ad 
CAL OU Me aay ss DO sbde Wi scats aelemc enacts See e cleroeioe celee ae eee ee cee A568 | 33 0) Tein 
TE HONG eel ste ORE tay Se a re Re ap Ply ay Geek NS ae a | 557 33 S| : 
QUOT e=2 (ENS 20) 06 WVitoee ccinicialsmeelellers seman icteis eee ooo el sete eaens 560 | 56 0! 117 
ALONG Sar NS29156 Woasieoe ste swans eee eeen ene come a aee eee 5a7 | je j 
rs 
