Scientific American Volume 03 Number 09 (August 1860) . boat; the hook being secured by a nut. Themanner of hangincr the hind wheels is shown in Fig. slab of india-rubber, 6, is secured to the gunwale ofthe boat by the loop, c, at one end, and by the loop, d,at the other end. The loop, d, is connected to the gun-wale by a bolt which operates as a hinge, allowing theloop to be turned down as shown by the dotted lines,thus releasing one end of the spring, 6, for the purposeof admitting the axle under it, or for the purpose of re- problem. She comes and goes now on her pleasurecoasting servic
Scientific American Volume 03 Number 09 (August 1860) . boat; the hook being secured by a nut. Themanner of hangincr the hind wheels is shown in Fig. slab of india-rubber, 6, is secured to the gunwale ofthe boat by the loop, c, at one end, and by the loop, d,at the other end. The loop, d, is connected to the gun-wale by a bolt which operates as a hinge, allowing theloop to be turned down as shown by the dotted lines,thus releasing one end of the spring, 6, for the purposeof admitting the axle under it, or for the purpose of re- problem. She comes and goes now on her pleasurecoasting service without exciting any extraordinary in-terest. People gaze at her vast proportions as she steamsup and down the bay, just as boys do at the great ele-phant in some menagerie procession parading the streets;but there is a deeper interest felt as to her future by thethinking portion of the community, and especially byship-owners and merchants. What is to become of herwhen her exhibition season is over, and she returns toEngland ? That is the moving the axle when the boat is to be detached fromthe wheels. It will be seen -that this mode of hangingis exceedingly simple, secures the softness of the indiarubber spring, and allows the most perfect turning mo-tion to the forward axle. The arrangement of the paddle-wheels is so clearlyshown in Fig. 1, as scarcely to require any keel is elongated at the stern, forming supports forthe paddle-wheels, which are hung and connected byrods and beveled gears with the cranks, in the mannershown. Further information in relation to this invention maybe obtained by addressing th% inventor, Perry Davis, atProvidence, R. I. Of what is thb Son composed ?—Professor Kir-choff, of Germany, has recently been making experi-ments with artificial lights produced by various sub-stances, comparing certain of their effects with similareffects produced by the suns rays, from which it is pro-bable that the luminous atmosphere of the
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