On p. 56, the phrase ['its prices elsewhere'] was 'its prices elsewere' in the original.
On p. 58, in the question about the 'doctrine of economic harmonies', the word ['justification'] was 'justificaton' in the original.
On p. 59, the question about ['unsuccessful employers'] had 'unsuccesful' in the original.
The phrase ['land owners'] occurs once in the text; the word 'land-owners', broken across lines, occurs once. This discrepancy has been retained, with the word ['land-owners'] rather than 'landowners' being arbitrarily chosen for the latter.