W. J. McGee—Artificial Mounds of Northeastern Iowa. 277 
Again in main system :— 
Mounds, paces. Mounds. Spaces 
Embankment, 50 yards, _..__- 20 yds. | Tail of animal (dog?) mound, 
Bee AE sehen 12% whole length, 65 yards,--.. break. 
i AE ee 15 “ |“ Alligator” mound, 49 yards, 14 yds. 
rf gk Dears ren She ote 12 “ | Composite, three conical, con- 
Conical, 20 nected by two embankments, 
. 30. # e 37 yards 6. 
5 ‘“ | Embankment, 33 yards,.--..- break. 
Embankment, 33 yards, ..___- b0 x oo ee break. 
onical, eak. | Conical, 19 yds, 
a 23 yds. i Ss 
ec 93. «Ot “ 19 & 
iy’ 1c Spiess Samba srar canes a 4°05 6 55 Of 
Tat, RU ee pee nT ear Oe 8 14 * “ 44 % 
Rie se -- 8 “ | Embankment, 50 yards. 
A group in the western part of Dubuque county, Iowa :— 
Mounds. Spaces. Mounds. Spaces. 
Embankment, 55 yards,_____- 75 yds. | Embankment, 40 yards,_---- - 23 yds. 
se 85 aah Auer oe 12 % a3 40 EG Bey 96 * 
“ 63 Ler ate 2 163% A 40 ee Se 45 * 
ec vi) pen eS ieee 10 “« “ Gee os 
“ 40 pase MMe oe 12 
In the group in the figure, the measurements, beginning at 
the west (right), are :— 
Mounds. Spaces. 
Embankment, 40 yards, . _. 18 yards. 
Animal (body and head) 32 yards, ......-.------ 18“ (to tail). 
“ “ 73 30 ge ae an cere 5 ee $ 
“ “ H 00 -.%. Groomigeig), 33 * 
Embankment, 38 yards, oF 
“ 36 ae 
res 
14, 19 and 60 yards, three each; of 28 and 50 yards, four each; 
of 80 and 40 yards, five each; of 12 and 18 yards, seven each ; 
nine spaces of 25 yards, ten each of 15 and 28 yards, thirteen 
of 17, and fourteen of 20 yards. In the one hundred and nine- 
teen Spaces, there are but thirty-two different dimensions. 
the spaces between the mounds. Com aring both spaces and 
mounds, therefore, we have one hundred and sixty-nine dimen- 
Stons of thirty-eight different values, as follow: of 5, 8, 10, 16, 
