51 
tomic characters: a, acetabulum; es., esophagus; gp, 
genital pore; i., intestine, Avhich is double for some dis- 
tance, but the two ceca unite (f) back of the ovary; oo., 
ootype; ov., OAmry; ovd., oviduct; shell gland; m., 
nervoussystem; ?/f.,uterus;rfd.,'\'itelloduct; rf 7 .,vitello- 
geneglands. x 38. (After Looss, 1896, pi. 11, fig. 108.) 
Fig. 87. — Egg of Human Blood 
Fluke {Schistosoma hsemato- 
hium), with contained em- 
bryos passed in the urine. 
X 285. (After Looss, 1896, pi. 
11, fig. 112.) 
Fig. 88. — Ureter of an Egyptian, 
with numerous uric-acid con- 
cretions, as a result of blood- 
fluke infection. (After Leuck- 
art, 1894, p. 528, fig. 231.) 
