Cement testing laboratory, Cypher St. yard Elevated posts Dewey Square, Boston, Mass. Construction sec.C excavation in front of Regal Shoe So. Construction sec.C Summer W. of Church Dorchester Tunnel buildings Dewey Sq. Sec.C Summer St. depression at High St. looking easterly Bonding tests Bonding tests, 1" diamond bars, before testing Pattern shop Cypher St. Bonding tests Bonding tests Bonding tests Bonding tests, 1" slick bar splice before testing Cypher St. Yard, s.e. end Bonding tests Bachenden Wharf Douglas fir specimens after testing Long leaf hard pine specimens after testing Mould and reinforcement for unit stairs Cypher St. yard Washington Station, details of stairs, etc. Shield for sec. E at Boston Bridge works Arrival of part of shield sec.C 6,8,12 blocks before testing; 1/2 Gabriel rods Shaft sec.E looking northerly from brass foundry Concrete compression cylinders Part of the shield, sec.E Buildings, Dorchester Ave., side of Fire Station and Public Convenience Station Sec.E shield and hard pine Sec.E showing hard pine lining Part of Canal St. Yard Canal St. Yard fence and sidewalk Canal St. Yard fence and sidewalk Canal St. Yard fence Canal St. Yard fence Canal St. Yard Buildings - 153 Dorchester Ave., west side South Boston Billboards Dorchester Ave., corner of W. Forth St. Buildings W. Forth St. Buildings #142 + #146 Dorchester Ave. at Silver St., South Boston Buildings Dorchester Ave. at Silver St., South Boston Buildings W. forth St. n. side, corner of Dorchester Ave. Sec.E wooden lining Sec.E erector and steel forms Sec.E steel forms and travelers Sec.E concrete invert and travelers Building n.e. corner Broadway and Dorchester Ave. Sec.H construction Head work at shaft w. first Houses 20-22 Ellery St. Dukes Saloon Dorchester Ave., Andrew Sq.