The great cuttles, also, have been the subject of articles in various magazines, notably one by Mr. W. Saville Kent, F.L.S., in the 'Popular Science Review' of April, 1874, and a chapter in my little book on the Octopus, published in 1873, is also devoted to them. In writing of them as the living representatives of the kraken, and as having been frequently mistaken for the "sea-serpent," my deductions have been drawn from personal knowledge, and an intimate acquaintance with the habits, form, and structure of the animals described. It was only by watching the movements of specimens of the "common squid" (_Loligo vulgaris_), and the "little squid" (_L. media_), which lived in the tanks of the Brighton Aquarium, that I recognised in their peculiar habit of occasionally swimming half-submerged, with uplifted caudal extremity, and trailing arms, the fact that I had before me the "sea-serpent" of many a well-authenticated anecdote. A mere knowledge of their form and anatomy after death had never suggested to me that which became at once apparent when I saw them in life. It is a pleasure to me to acknowledge gratefully the kindness I have met with in connection with the illustrations of this book. The proprietors of the _Illustrated London News_ not only gave me permission to copy, in reduced size, their two pictures of the _Daedalus_ incident, but presented to me electrotype copies of all others small enough for these pages--namely, "Jonah and the Monster," Egede's "Sea-Serpent," and the Whale as seen from the _Pauline_. Equally kind have been the proprietors of the _Field_. To them I am greatly indebted for their permission to copy the beautiful woodcuts of the "Octopus at Rest," "The Sepia seizing its Prey," and the arms of the Newfoundland squids, and also for "electros" of the two curious Japanese engravings, all of which originally appeared in their paper. From the _Graphic_ I have had similar permission to copy any cuts that might be thought suitable, and the illustrations of the sea-serpent, as seen from Her Majesty's yacht _Osborne_ and the _City of Baltimore_, are from that journal. Messrs. Nisbet most courteously allowed me to have a copy of the block of the _Enaliosaurus_ swimming, which was one of the numerous pictures in Mr. Gosse's book, published by them, already referred to. And last, not least, I have to thank Miss Ellen Woodward, daughter of my friend, Dr. Henry Woodward, F.R.S., for enabling me to better explain the movements and appearances of the squids when swimming, and when raising their bodies out of water in an erect position, by carefully drawing them from my rough sketches. HENRY LEE. SAVAGE CLUB; _July 21st, 1883_. LIST OF ILLUSTRATIONS. _Frontispiece._--The Sea Serpent as first seen from H.M.S. _Daedalus_. FIG. PAGE 1. Beak and Arms of a Decapod Cuttle 16