JF Ptak Science Books Post 1828
This is an interesting and somewhat reserve view of the future of Manhattan, as seen from the pre-Centenniel eye of 1875, showing Trinity Church bookended by high-rise structures:

[Source:
Harper's Weekly, via the New York Public Library Digital Collection,
here.]
It would have been difficult to imagine structures of any greater height here in pre-elevator (and pre-elevator/Westinghouse brakes) and early post-iron-structure days than the spire of Trinity Church. This Trinity (the third and current occupiers of an old spot at 79 Broadway, the first of the Trinitys going up in 1698 with the help of he block and tackle of Capt. William Kidd, privateer/probably-not-pirate) was the tallest building in Manhattan when it was built in 1846 (at 281' to the tip of the spire), and remained so the tallest until the construction of the New York World Building (305') in 1890. (The World building was torn down in 1955 to make room for another on-ramp for the Brooklyn Bridge.) So when this image was published it was still another 15 years away from anything being taller than the Trinity tower, which meant it was a pretty fair leap of faith to assume department stores crowding out the church's airspace back in 1875.
It is a pretty good approximation of what actually happened, though the canyonesque feel for development is more on Wall Street than it was here contiguous to the church grounds, though almost no one could imagine the dense high-rise growth that is there today:

There are many more colorful approximations of what might happen in Manhattan, one of which I've included below, showing the full and complete development of downtown, with trains leading away from the city right through the Statue of Liberty. This peep into a possible future appeared in Harper's Weekly on 18 May 1887. It is the work of artist W.A. Rogers and depicts a filling-up lower Manhattan, complete with broad avenues lined by elevated trains whose reach evidently knows no bounds. The new elevated subway winds its way across the harbor to Liberty Island, where it wraps itself around the feet and up the body of the newly--dedicated Statue of Liberty (opened in October of the previous year). In the foreground is the cupola of a transit station with a fluttering flag advertising "Coney Island via Broadway"--I'm not sure what this is all about, as the placement of the island has nothing to do with anything except making a point in the cartoon.

It is interesting to see though that the Trinity spire is still very visible.
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