| Every third night Algol has its light reduced for several hours. |
| The algol colours resemble the Indanthrene colours in their properties and application. |
| It is Algol,judged by superstitious folk to be an evil star. |
| Eclipses by the Algol binary system are interesting because they differ in a fundamental way from all the types of eclipse previously mentioned. |
| For the other leading type of variable star, Algol, of which mention has already been made, is the best instance. |
| Mr. Gore thinks that the companion of Algol may be a star of the sixth magnitude. |
