[SunkenCiv]

That's probably all you can get; the canali reported by Schiaparelli are still reported today, and in the same places, which is weird, because I don't think there's any sign of them from probes. He was able to make out the large impact features, but the term canali led Percival Lowell and a few others to believe that there were artificial water channels on Mars. One of the non-explanations for them was that anyone seeing a blurry orange dot would automatically just make up details like that, another nail in the coffin of the idea that "skeptics" are rational.

[Robert A Cook PE]

Dust storms blowing across the planet - like our cold fronts, they’d create a blurry impression of lines.

And, the next time, wouldn’t a blurry-eyed astronomer “want” to see the same impression of lines again? Even his sketches didn’t have the same lines in the same latitudes again.

[Conan the Librarian]

At High magnification I have seen the lines. The eyes do play tricks.

But, the weather has been so bad here the last few months, I have yet to see Mars through a scope.

Hoping for a chance this weekend.