A 1968 anthology of stories (and one factual piece about meteor strikes) from Analog magazine. Some of these were irritating one-nifty-idea tales, but most were at least decent. The standout piece is Bob Shaw’s “Light of Other Days”, also the only one I was already familiar with. The best known of the other stories is Gordon Dickson’s “Call Him Lord” which is actually a story about a society with a rather brutal honour code, more fantasy than sf though the setting is Earth in a future Space Empire.

But really, considering what else was going on in sf at the time, what strikes one about these stories is juts how old fashioned they are; most of them (“Light of Other Days” being the clear exception) would not have been at all out of place in the Astounding of two or three decades earlier.