I have the original publication of this book in amazing condition. Reading the original is definitely satisfying beyond belief.
One of the most compelling arguments requires an experiment that very few people will perform. It involves compass readings and measuring the length of travel between identical latitudes between the northern and southern hemispheres. If you attempted measurement today in the "southern hemisphere" you would either be overtaken by the sea, taken out by a number of different government patrol ships (dozens of countries would escort you out of international waters), or simply be killed by pirates. Even if you were able to avoid all of these perils, you would then be faced with measuring the same latitude in the north, which is not equal in terms of land and sea geography.
When was the last/first time a plane has circumnavigated the world at both the 60° parallel north and 60° parallel south, and then published its findings?
This would be a relatively SIMPLE task. But you will not find a single public measurement.
Instead of being met with a scientific embrace, you will be met with indignance. As an audience to your question, you will find rude and condescending people possessed with the spirits of mockery, arrogance, and hubris.
In an age where Science is dogmatic religion, and many are ruthless and sociopathic this kind of book will be seen as nonsense. This is what makes the original copy of this book all the more valuable.