194 WEIGHTS - WELLS.— WINDS. 



WEIGHTS. 



Metrol'ogy (Gr. viefron, a measure, and loffos, a discourse). — 

 The science of weijihts and measures. 



WELLS. 



Well'-sinking. — The art or process of sinking or digging a 

 well or wells. 



WINDS. 



Anemorogy (Gr. aneinos, wind, and logos, a discourse). — The 



doctriue of winds. 

 Anemom'eter (Gr. anemos, wind, and metron, a measure). — An 



instrument or macliine for measuring the force of the 



winds. 

 Cy'clone. — A rotatory storm or whirlwind of extended cir- 

 cuit. 

 Harmat'tan. — A hot, dry wind, which blows on the western 



coast of Africa. It corresponds to the simoom. 

 Lim'bat. — A cooling, periodical wind in the isle of Cyprus, 



blowing from the northwest from eight o'clock a.m. to 



the middle of the day or later. 

 Monsoon'. — A periodical wind prevailing in the East Indies, 



which blows from the northeast in summer and from the 



southwest in winter. 

 Pampe'ro. — A violent wind from the west or the southwest, 



which sweeps over the pampas in the southern part of 



Buenos Ayres. 

 Simoom', Simoon', or Sa'miel. — A hot, dry wind, that blows 



in the Eastern deserts ; generated by the extreme heat. 

 Siroc'co. — An oppressive, relaxing wind from the Lib3'an 



deserts, chiefly experienced in Italy, Malta, and Sicily. 

 Torna'do. — A violent gust of wind, or a tempest, distinguished 



by a whirling motion ; usually accompanied with severe 



thunder, lightning, and torrents of rain. 

 Trade'-wind. — Certain winds in the torrid zone, and often a 



little beyond it, which blow from the same quarter through- 

 out the year, unless when aff'ected by local causes. 

 Typhoon'. — A violent tornado or hurricane in the Chinese seas. 



It is produced chiefly by the action of heat. 



