At the side of every house a chute came straight down into the canal. Each doctor's speciality could be told by carefully watching the orifice at the bottoms of these tubes for a few moments.
Etxe bakoitzaren aurrean tubo bat bukatzen zen kanalean, eta honi zegokion zuloa piska batean behatuz gero sendagilearen espezialitatea asma zitekeen.