67 



fall down into their proper places on the wind's 

 abating. 



The bottom of the vertical axis or pole f. Fig. 2. 



is sheathed with a steel point, and a socket, which 



rest on a wooden stand or frame, as at d. Fig. 1. so 



as to turn with ease, and avoid as much as possible 



any friction. 



I have also to remark, that in order to render this simple 



machine more complete, and answer the purpose of an 



Anemoscope, as well as an Anemometer, it is only necessary 



to apply to that part of the pole or axis, which is in the 



apartment, an index, and attach to the ceiling a thin deal 



board, or a sheet of pasteboard, with the points of the 



compass marked thereon. 



A Tabic 



