What natural force could have produced such plants, and what must have been the appearance of the earth in the first ages of its formation, when, under the action of heat and moisture, the vegetable kingdom alone was developing on its surface?
Quelle force naturelle pouvait produire de telles plantes, et quel devait être l'aspect de la terre aux premiers siècles de sa formation, quand, sous l'action de la chaleur et de l'humidité, le règne végétal se développait seul à sa surface!