61.   Wealth during industrialisation was no longer adequate as a distinguishing feature of social class.

62.   While she affirmed learning across social classes, Jane Addams was a critic of higher education.

63.   The Marxist theory of history centres around the notion of social class.

64.   The drug problem cuts across all social classes.

65.   Roberts is researching the effect of social class on educational achievement.

66.   ...the relationship between social classes.

67.   Higher education is unequally distributed across social classes.

68.   ...sectoral differences within social classes.

69.   By birth and by education Jefferson belonged to the highest social class.