From The Strand Magazine, 1924.

To be read in a roundabout way.  From Dana's Musical Institute's 1931 yearbook.

From Modern English Writing by Douglas Bement, 1937.

"The old spells were the good spells.  Some of the language is really quite beautiful.  'May Beelzebub's drool sear your eyelids shut.'  They don't write them like that anymore."  From Passions episode 219.

Is the opposite of "a book within a book" a book outside a book?  When HarperCollins published my dictionary of one-letter words, they dismissed its original context as a spinoff of Lewis Carroll's Through the Looking-Glass.  It was meant to be the White Queen character's reference manual.  Did HarperCollins make the right decision?

"We are often unable to act on our certainties; our objection to a contrary issue is so strong that is rises like a spectral delusion between us and our certainties."  From The Essentials of the English Sentence by Elias H. MacEwan, 1900.

From "Don't Give Your Animals a Name" in The Ladies' Home Journal, 1945.

The elephoo and the tigeroo.  From We Can Read Magic and Make-Believe by Gerrard & McInnes, 1964.

From The Book of Shadows by Don Paterson, 2005.

Phunnetics is rarely taught anymore.  From Peace Institute's 1910 yearbook.

"Walk while ye have the light, lest darkness come upon you."  From The Essentials of the English Sentence by Elias H. MacEwan, 1900.

"Tchacasipapyagoos" is a Googlewhack as of this posting.  From The Lord of the Manor by Thomas Hall, 1849.

From Noreascon 3, 1989.

From Junior English Activities Book Three by Hatfield, Lewis, Besig & Borchers (undated, c. 1938).

From Junior English Activities 2 by Hatfield, Lewis, Thomas & Woody, 1938.

You've seen folks black out words in other people's texts, but Rabbi Seymour Krutman included blanks when he wrote this quatrain.  From "Meditations in the Night," in Yeshiva University's 1944 yearbook

From Better English Seventh Year by Jeschke, Potter & Gillet, 1930.

From James Millikin University's 1915 yearbook.