^{Page 9 of note *} Yet the present century was going to give rise in the field of Astronomy, to revelations which were as extraordinary as they were unexpected, and which filled our mind with surprise and wonder. A new science was indeed borne, as if, through some kind of doubling, our old astronomy had given birth to a new astronomy, overflowing with strength, youth and vitality, creating the most enthusiastic and unanimous admiration”.

^{Page 11 of note *} Traduction: “Je crois qu’il n†y a pas eu de période semblable au cours de laquelle si peu de grands télescopes ont été contruits dans les centres civilisés d’Europe occidentale”.