ANTIQUITY OF MAN IN EUROPE—MACCURDY. aby 
In that case the chipping is done from the back toward the front, as 
one might expect; a fact which strengthens the theory that the chip- 
ping is intentional and not accidental. 
a 
Fic. 1.—Flint flake with one-sided marginal chipping that follows the rule, viz, done 
from the front toward the back, thus securing an edge every point of which is in the 
same plane; (a) front, (b) back, (c) looking toward the edge. 
Professor Verworn made a tabulation to show the percentage of 
specimens that follow the rule and of those that do not. He chose 
a c b 
Fic. 2.—Flint flake with one-sided marginal chipping opposed to the rule, viz, done from 
the back toward the front, thus producing an irregular edge that is practically use- 
less; (a) front, (b) back, (c) looking toward the edge. After Verworn, Zeit f. eth., 
Vol. 40, p. 550, 1908. 
two series universally recognized as artifacts, comparing them with 
each other, and later with a series of eoliths from Puy-de-Boudieu 
(Cantal). His results follow: 
Total number | Number Number 
Locality. of pieces ex- | thatfollow | opposed to 
amined. the rule. the rule. 
Per cent. Per cent. 
Weézerew alleys (Dordogne) atari. cscs ccs ccc - idace leeaises se easeee 686 | 654=95.3 32=4.7 
ADSI Sool aV Ne SA OE se oii Leno my Se UR pee Oe fr 92 88=95. 7 4=4.3 
Puy-de=Boudiew (Carita pees ees tooo enrat siosiceeeine Semmens 1219) 1595 6=5 
45745°-—sM 1909 
35 
