The Hunting of the Snark the illustrations needed three months to be complete. By the time Holiday had completed the sketches and sent them to Carroll, Carroll had already created a new fit requiring an illustration. They worked this way until Holiday had created nine illustrations as well as the front cover and the back cover of the book. Thus, among the ten illustrations shown below, one illustration is not by Henry Holiday. The "Ocean Chart" is typographic art whereas electrotypes made from Joseph Swain's woodblock engravings were used to print Henry Holiday's illustrations. There is no depiction of the Snark, nor of Boots. However,
Lewis Carroll would have considerable doubt about making a diagnosis of epilepsy without further information. There are societies in many parts of the world dedicated to the enjoyment and promotion of his works and the investigation of his life. On Copenhagen Street in Islington is the Lewis Carroll Children's Library. In 1982, his great-nephew unveiled a memorial stone to him in Poets' Corner, Westminster Abbey. Lewis Carroll Charles Lutwidge Dodgson (; 27 January 1832 – 14 January 1898), better known by his pen name Lewis Carroll, was an English writer of world-famous children's fiction, notably "Alice's Adventures in Wonderland" and its sequel