39 
SOUTH CAKOUINA. 
Camden^ Camden Coantij. — I'nexpcctedly dchiyod ;it Cumdon, I 
visited the l)rickviirds witli Dr. J. W. Corl)ctt. Of 7 specimens of 
feces picked up at random from the o-round, probably most if not all 
from negroes, 1 was found infected with Tliclaana am<-rtcana. ( )ne 
white laborer also showed infection with the same parasite. 
Haile Goldaiine^ Lancaster County . — Through the kindness of Cap- 
tain Thiess, the superintendent of the mines, and I)r. (iregorv. the 
local pln^sician, 1 was able to examine specimens from 5 whit(‘ men 
and 5 negroes connected with the mine. All of th(‘se examinations 
were negative. 
Upon leaving Kichmond I ha])pened to recall the observation mafic 
by Lucas (in rlordan & Clark, 1898, p. To) in connection with uncina- 
riasis of the seal pups of Alaska, uamelv, that the infected animals 
were almost invarial)ly found on the sand rookeric's; I also recallefl 
that I had observed severe outbreaks of uncinariasis in sheep and 
goats on more or less sand}" pastures, and further that a severe out- 
break of the same disease among dogs had once been reported to 
me as occurring in a sand}" yard. Not recalling at the* time any 
similar ol)servation for uncinariasis in man, I determined to t(‘st the 
subject at the first oi)portunity, and from Richmond to Haile Cold- 
mine I had diligently iiifpiired of every })hysician I met, whethm- he 
found more anemia on sand, clay, or rock soil. Most physicians 
replied that they had paid no attention to the subject; one ])hysician 
stated that he thought anemia was more common in sandy thati in 
clay localities. 
Through CVptain Thiess I learned that the land m‘ar tlu‘ mine's was 
chieflv a granite sand: With Dr. Gregorv, I drove' about 4 mile's 
into the sanelv district in Lancaster Countv and fe)unel a familv e>f 11 
meml)ers, f)iie e>f whom Avas an alleged dirt-e'ate'i-." 'Plie' instant 1 
saw these 11 persons 1 recalleel Litth'ls (1845) de'seription of the' elirt- 
eaters of Florida. (Se'c Stiles, 1902b, p. 20S.) A })hysie*al e'xami na- 
tion made it prejbable that we' had befe)re us 11 case's e>f uncinaiaasis, 
and a specimen of feces from one', of the chilelre'u gave' the' pe>sitive' 
diagnosis of infection with Uncinaria amerieana. 4'here' we're' liun- 
dreds of eggs ]) resent. 
Inepiiring for the largest ])lantation of this sand elistrie t, 1 was 
directed to a place in Kershaw ('e)unty, abeiut ♦) mile's ii'enn Ke'rshaw, 
and through tlie kindness e>f Dr. 4'witty anel the' owne'r e>t the' planta- 
tion, I was able te> make the desireel examinatieens. 
There are about 00 white “hanels" e)ii this farm. Ce)ing to a 
field I found about 20 at work. The'se' 20 i)erse>ns, me'ii, we)me*n, and 
children, corresj)e)nded in more'. e>r h'ss eh'tail te> the' eh'scri|)t ieen e>t 
the so-called dirt-(*aters and re'sin-chewe'rs. A physical e.xamination 
