71.   Continental-margin orogens are considered in several of the references mentioned above.

72.   The characteristics of the various types of volcanic eruption are considered in the general texts mentioned above.

73.   These will be considered in this section.

74.   Almost all of those mosaics with saltire or Orpheus designs suggest more specific stylistic affinities than can be considered in this section,.

75.   When considered in the context of levels of affinity obtaining between other mosaics in Britain, the degree of similarity in the group is exceptional.

76.   This was considered in nineteen eighty two.

77.   Factors which affect some quality parameters, eg, reliability, are considered in reference.

78.   Even given the briefest of sketches we can begin to glimpse the wider significances of design activity considered in this manner.

79.   Let us consider in a little more detail some of the main features of British elections before proceeding to a consideration of the current controversy surrounding the electoral system.

80.   Once the nature of the business has been discussed and key concerns identified it is necessary to consider in what areas specialist advice should be sought.