I was once speaking on this subject to Sir Jesse Boot, telling him how hard I had found it to amuse and distract the mind of one of my children in the extreme weakness which fell upon her after an operation. I told him that I had searched my book-shelves for stories, histories, anthologies, and journeyings; that I had carried to the bedside piles of books which I thought the most suitable; and that I had read from these books day after day, succeeding for some few minutes at a time to interest the sick child, but ending almost in every case with failure and defeat. I found that humour could bore, that narrative could irritate, that essays could worry and perplex, that poetry could depress, and that wit could tease with its cleverness. Moreover, I found that one could not go straight to any anthology in existence without coming unexpectedly, and before one was aware of it, upon some passage so mournful or sad or pathetic that it undid at a sentence all the good which had been done by luckier reading. My friend, who is himself a great reader, and who has borne for some years a heavy burden of infirmity, agreed that cheerful reading is of immense help in sickness and also confessed that it is difficult to find any one book which ministers to a mind weakened by illness or tortured by insomnia. The present volume is the outcome of that conversation. I determined to compile a book which from the first page to the last should be a happy book, a book which would come to be a friend of all those who share in any way the sickness of the world, a book to which everybody could go with the sure knowledge that they would find there nothing to depress, nothing to exacerbate irritable nerves, nothing to confirm the mind in dejection. And on its positive side I said that this book should be diverse and changeful in its happiness. I planned that while cheerfulness should be its soul, the expression of that cheerfulness should avoid monotony with as great an energy as the book itself avoided depression. My theory was a book whose pages should resemble rather an _olla podrida_ of variety than a tautological joint of monotonous nutriment. And I sought to fill my wallet rather from the crumbs let fall by the happy feasters than from the too familiar table of the great masters.