The pedestrians aligned in such a way that from above they made a pyramidal pattern.

He rode into town on ponyback.

As they approached they saw a man running up this track towards the road, a man in lumber jacket and dirty canvas trousers, a rough man, running clumsily up-hill, half foundered.

The librarian should consider the value of the publication compared to its cost. How far will one resource stretch compared with another of the same price? For example, a pamphlet or booklet series is accessible to more people at one time than a bound volume.