Journal for the History of Astronomy

For Saturn alone stands apart from the pattern of the remaining celestial bodies, and shows so many discrepant phases, that hitherto it has been doubted whether it is a globe connected to two smaller globes or whether it is a spheroid provided with two conspicuous cavities or, if you like, spots, or whether it represents a kind of vessel with handles on both sides, or finally, whether it is some other shape.