There was no end, she thought, to the unexpectedness of Katharine.

She had once had a passion for geometry herself, and, curled upon Katharine's quilt, she became absorbed in trying to remember how far she had forgotten what she once knew.

Katharine, coming in a little later, found her deep in this characteristic pursuit.
"My dear," Cassandra exclaimed, shaking the book at her cousin, "my whole life's changed from this moment! I must write the man's name down at once, or I shall forget--" Whose name, what book, which life was changed Katharine proceeded to ascertain.

She began to lay aside her clothes hurriedly, for she was very late.
"May I sit and watch you ?" Cassandra asked, shutting up her book.

"I got ready on purpose." "Oh, you're ready, are you ?" said Katharine, half turning in the midst of her operations, and looking at Cassandra, who sat, clasping her knees, on the edge of the bed.
"There are people dining here," she said, taking in the effect of Cassandra from a new point of view.