Earth Not a Globe was correct in 1865 and it is correct today. Truth does not have an expiration date.
"If the Earth were a globe, a small model globe would be the very best - because the truest - thing for the navigator to take to sea with him. But such a thing as that is not known: with such a toy as a guide, the mariner would wreck his ship, of a certainty!, This is a proof that Earth is not a globe."
This guy makes arguments, nothing more.
Well, he does make outrageous claims also...
He was also alleged to be using the name "Dr. Samuel Birley", selling the secrets for prolonging human life and curing every disease imaginable[4] and de Morgan refers to him as S. Goulden.[1] He patented a number of inventions including a 'life-preserving cylindrical railway carriage'.
Is this still the truth? People die from cancer all the time, and other diseases. Im sure he cured diseases back in 1850 or so, we just forgot it.