Grammar, spelling, pronunciation, vocabulary.
“It was a thrilling experience to be whizzed in a “lift” a quarter of a mile heavenward, and to see New York spread out like a marvellous tapestry beneath us. There was the Hudson – more like the flash of a sword-blade than a noble river.” I hope this answer helps you with what you are looking for.
This post of view is a person's thoughts, which is first person. First person is the reader reading as the character, and that's how this introductory line is written.
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