Reading the past
(signifier) and its identity (signified) is arbitrary. However, if
the boat were actually a sled, the structure elk:sled::land:water
crumbles because sleds pertain to land, not water. Tilley ad-
mits the ambiguity and variability in boat designs, but never
abandons the boat identification (p. 73). Thus, when he re-
jects this ‘increasingly unconvincing’ structuralist exercise
and moves to a hermeneutic method in the hopes of a bet-
ter accommodation with meaning and content (p. 114), the
boat/sled problem remains. Tilley’s argument that boats un-
derscore that which is out of humanity’s control because they
are subject to wild and restless waters (p. 146) does not work,
of course, if the boats are actually sleds. Tilley’s attempt to
incorporate ideology into the rock carvings is equally ques-
tionable since the interpretation of privileged contact with
distant, maritime populations and their exotic goods depends
on a reading of boats as symbols of such outsiders (p. 164).
In the rock carving example, problems arose from inad-
equate attention to the content of a specific element in a
structural pattern. In the next example we illustrate prob-
lems of interpretation that arise once a structural pattern has
been soundly identified. In his study of the Iron Age settle-
ment of Sollas, in the Hebrides of Scotland, Campbell (2000)
comments on an exceptional assemblage of well-preserved
cattle and sheep remains in burial pits. Campbell noticed
that the cattle were cremated more than any other species,
while sheep were most often inhumed. Data from middens
and residues of pots showed that sheep were often roasted
for food, while cattle were boiled in earthen pots. Cremation
and roasting both involve open-air firing, whereas boiling
and inhumation both involve containment in earth and wa-
ter (inhumation at Sollas involves water because of the high
water table). Thus, in the realm of food, we have the rela-
tionship cattle:sheep::water:fire, because cattle are boiled and
sheep roasted. However, in the realm of burial, the relations
are reversed: cattle:sheep::fire:water, since cattle are cremated
and sheep are inhumed. Having identified these structural pat-
terns, Campbell interprets them as models of the Hebridean
worldview (cf. Douglas 1969, pp. 41–57). Campbell thus
54