INDEX. 431 



Weight exists in all matter, 80, 81 



Weights and Measures, third report of the commissioners ap- 

 pointed to consider the subject of, 378-380 

 Wood, on the deposition of carbonate of lime in, 405, 406 

 Woollen cloths, ravages of moths in, how prevented, 303 



Young (Dr.), observations of, on atmospherical refraction, 

 353-364. 



z 



Zenith, account of a coloured circle round, 40 



