I NEED hardly remark that on the right-hand side of the illustration is shown a Laminated Stove, and that on the left are drawings of the gills of the Shark tribe and the common Trout. If the reader would really like to look into the subject for himself, I should suggest the purchase of a cod’s head and shoulders and a lobster. The breathing apparatus can be removed from each for examination, and the remainder will serve as a first course for dinner. RING AND STAPLE. Humble, and apparently insignificant, as the principle of the Ring and Staple may be, we owe no small amount of our domestic comfort to it. It meets us in all kinds of ways, in the hinges of our boxes, in the padlocks of our doors, in the innside fastenings for our horses, in the seaside fastenings for ships’ cables, and in a thousand other ways too many to enumerate. * * * * * ON the right-hand side of the next illustration is shown the Ring and Staple as used for the purpose of mooring ships and boats, it being absolutely necessary that the machinery, simple as it is, must be capable of working in any direction, and with some latitude as to the extent. [Illustration: HEAD-BONES OF ANGLER-FISH.] [Illustration: STAPLE AND RING.] On the left hand are shown two of the wonderful bones which are found in the head of the Fishing-frog or Angler-fish (_Lophius_), and which serve as decoys, by means of which the smaller fish are entrapped into the vast jaws of the Angler-fish. It is clearly necessary that these singular appendages should be capable of movement in every direction, and this object is attained by the structure which is here shown, and which is almost equal to the ball-and-socket joint for its freedom of movement. It will even allow of partial rotation, so as to cause the little strip of skin at its end to assume the aspect of a living worm, and entice the smaller fish into the jaws of the dread trap that lies open before them. A figure of this fish may be seen on page 92. THE FAN. Except in permanently cold countries, a Fan of some kind seems to be an absolute necessity. Sometimes, as in the greater part of Europe, it is used only by the softer sex. The harder sex would often be only too glad to use it if they dared, and the same observation is equally true with regard to the parasol. But, in such lands as Japan and China, the Fan is an absolute necessity of existence. Men, women, and children alike carry their Fan, and almost perpetually use it. I remember, when the troupe of Japanese acrobats were in England, that one of them exhibited the national use of the Fan in an excessively ludicrous manner.