found: Work cat.: Darwin, J. The triumphs of Big Ben.
found: Acad. Am. encyc.:v. 20, p. 118, under Westmin. Pal.; v. 3, p. 732; v. 7, p. 92; v. 17, p. 712 (Bell); v. 3, p. 509.
found: Auto. Assn. Treasures of Brit., 1972:p. 292, under London Houses of Parliament.
found: Collier's:v. 11, p. 459a; v. 14, p. 755a.
found: Britannica Micro. Ready Ref. Index:v. II, p. 10.
found: London encyc., 1984:p. 63 (Big Ben)
found: PREMARC, 3/9/88(Big Ben (Bell))
found: Random House, 1970:p. 146 (Bell in clock tower)
notfound: Hennepin;IAC;Web. 3
