m. it. When it is slid down, a greater portion of This instrument is a simple means for the wick, m, will be exposed to the air, conse- sounding the depth of old ocean, and also quently the Lamp will give more light; when for ascertaining the strength and direction of it is raised a very small… … where the instrument was dropped, it will af- spring, j. The lower part of needle H, has a other side of the whecl, then throws in the end the separation of the cylinder, G, and the tube, ford evidence of acurrent, and its velocity— of the pallet of the fork, D, which then tips when the needle is…
Internet Archive · Public domain. Free to use for anything.
