Some years ago, I discovered a book called The Mother's Book, and blogged about it and the books that it recommended.
Coming across something which reminded me of it, I realised that I had come across the books online and thought that it was high time I linked them all :) You can find my later collection titles at the original post linked above, and you can also find the same books listed as the "After school Library".
The Mother's Book
The Young Folk's Treasury
Volume 1 - Childhood's Favorites and Fairy Stories
Volume 2 - Myths and Legendary Heroes
Volume 3 - Classic Tales and Old Fashioned Stories
Volume 4 - Modern Tales and Animal Stories (can't find this one, if you do, let me know!)
Volume 5 - The Animal World
Volume 6 - Famous Travels and Adventures
Volume 7 - Heroes and Patriots (although I cannot find this, you might try this link, also by Hamilton Wright Mabie)
Volume 8 - Wonders of Science and Invention
Volume 9 - Men and Women of Achievement, Self Help
Volume 10 - Ideal Home Life
Volume 11 - Golden Hours With The Poets
Volume 12 - Music and Fine Arts