22. Q. Who was Prometheus? A. A mythical being of superhuman rank, who stole fire from heaven and brought it to men. For this offense against Zeus he was condemned to be chained alive to a rocky cliff in the Caucasus.
23. Q. What other great tragic poet was contemporary with Æschylus? A. Sophocles.
24. Q. From what masterpiece of Sophocles are the selections of the present volume made? A. “Œdipus Tyrannus, or Œdipus the King.”
25. Q. How is this tragedy considered by, perhaps, the majority of qualified critics? A. To be not only the best work of Sophocles, but the “bright, consummate flower” of all Greek tragedy.
II.—TWENTY-FIVE QUESTIONS AND ANSWERS ON “CHEMISTRY”—FROM BEGINNING OF BOOK TO PAGE 84.
26. Q. Of what does chemistry treat? A. All kinds of material substances.
27. Q. What is said of the number of the various kinds of matter already existing on our earth? A. The number is so great that the various kinds have never been so much as counted, much less described, in any list or volume.
28. Q. Of what are all things known to chemists made up? A. A few simple substances, either existing alone or in richly various combinations.
29. Q. What are called chemical elements, and what compounds? A. The simplest substances when alone are called the chemical elements, or elementary substances; the things resulting when different elements are united are called compounds.