'Scientific scruples', Harpers
1910; 1910-3-1; 1910s; Caricatures and cartoons; civil engineering; Engineering; Footbridges; Kissing; Newell, Peter; United States
'The winged age', Harpers
1910; 1910-3-1; 1910s; Aeronautics and Aerospace; Aeronautics and civilization; Beggars; Caricatures and cartoons; Engineering; Poor women; United States; Walker, A. B.
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