INDEX. 15 



W 



Walls,\\ow constructed in India, VI, 378. — use of timber in, 388. 



Washing; how to render sea-water fit for, V, 145. 



Water, absorption of different kinds of air by, V, 22. — experiments on, 32. 

 —air produced by the freezing of, 36. 



of the ocean. See Mitchell. 



Watiins, Dr. John, his notices of the natural history of the northern parts 

 of Louisiana, VI, 69. 



Weather, in the Mississippi territory. See Mississippi territory. 



Williams, Jonathan, Esq. his paper on the process of claying sugar, VI, 82. 



Williamsbztrg-Jcmgitude of, VI, 297. — latitude, 297. 



Williamson, Dr. his paper on the ephoron leukon, or white fly of Passaick 

 river, V, 71. 



Wind-mills, on the best angles for the sails of, VI, 394. 



Witids, on the theory of, VI, 32. — in the Mississippi territory. See Missis- 

 sippi territory. 



