Synthesized answer
The author provides evidence through his sociological investigations of the living conditions among the working class in Lancashire and Yorkshire in the industrial north of England before World War II [Passage 1, Passage 2]. He documented graphically unforgettable descriptions of social injustice, cramped slum housing, dangerous mining conditions, squalor, hunger, and growing unemployment [Passage 2]. Orwell's method involved immersion of his own body directly into the experience of misery, which he considered a supreme measure of truth [Passage 1].
The passages do not detail the specific types of evidence collected during these investigations beyond the descriptive categories mentioned. They focus more on the nature and purpose of the evidence presented in the book rather than the granular details of its collection.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
unfair criticism, and half-truths." The book grapples "with the social and historical reality of Depression suffering in the north of England, - Orwell does not wish merely to enumerate evils and injustices, but to break through what he regards as middle-class oblivion, - Orwell's corrective to such falsity comes first by immersion of his own body - a supreme measure of truth for Orwell - directly into the experience of misery. Pages: 266 Snippet: The first half of this work documents his sociological investigations of the bleak living conditions among the working class in Lancashire and…
Title: The Road to Wigan Pier by George Orwell Description: A searing account of George Orwell's observations of working-class life in the bleak industrial heartlands of Yorkshire and Lancashire in the 1930s, The Road to Wigan Pier is a brilliant and bitter polemic that has lost none of its political impact over time. His graphically unforgettable descriptions of social injustice, cramped slum housing, dangerous mining conditions, squalor, hunger and growing unemployment are written with unblinking honesty, fury and great humanity. It crystallized the ideas that would be found in Orwell's…
trial north of England before World War II. The second half is a long essay on his middle-class upbringing, and the development of his political conscience, questioning British attitudes towards socialism. Orwell states plainly that he himself is in favour of socialism, but feels it necessary to point out reasons why many people who would benefit from socialism, and should logically support it, are in practice likely to be strong opponents. According to Orwell biographer Bernard Crick, publisher Victor Gollancz first tried to persuade Orwell's agent to allow the Left Book Club edition to…