Article 1 / Article 2 / Article 3 / Item 1 / Item 2

Article 1:

James Martien, the new president of the Association, outlines his plans for the
group.  ( page 9 )

Article 2:

A description of cement manufacturing at the North American Cement Corporation in Security, Maryland.  ( page 17 )

Article 3:

The Back River Sewage Treatment Works is described as one of the largest and best known in the world.  It is heralded as a splendid model for other cities. 
( page 21 )

Item 1:

The Rod and Wire Mill of Bethlehem Steel becomes the largest American steel plant on tidewater.  ( page 15 )

Item 2:

Based on population, Baltimore is listed as the 7th largest city in the United States.
( page 19 )