Editorial note — Translated From Etudes Religieuses, Etc., Par Des Peres De La Compagnie De Jesus. The Flight Of Spiders. A Paper Read Before The French Academy Of Science, March, 1867.

[Footnote 97: The argyronete is a spider that lives in the water where she constructs a charming little edifice that appears surrounded with a silky mortar. The down that covers her contains a certain quantity of air for respiration. This gives her in swimming the appearance of a ball of quicksilver, from which we have her name.]