"The Selenites are not fools," said Michel.
"A singular idea," replied Nicholl; "but it is probable that Kepler did not know the true dimensions of these circles, for the digging of them would have been the work of giants quite impossible for the Selenites."
"Why? if weight on the moon's surface is six times less than on the earth?" said Michel.
"But if the Selenites are six times smaller?" retorted Nicholl.
