I J^ D feX. 



1 



Wiaterl, Mr. on the existence of hy- 

 drogen in diamonds, 27 

 Withering, Mr. on sea kale, 100 

 W. N. on an universal tide table, 119 

 Woodward, Mr, on sea kale, 100 

 Wool, new pro<Sess for scowering, 78 



Y. 



Young) Dr. T. lamination of his rea^ i 



soning on the capillary action of 

 fluids, 1, 4— Notice of his lectures ia 

 natural philosophy, 79 — On the hy- 

 draulic theorem of Dubicat, 309 

 Yttria, oxigenizes muriatic acid, 77 



Z. 



Zois, Baron Von, his memoir ©n t)i« 

 Proteus Anguinis, 91 



END OP THJ: CICHTEENTH VOLUMEr 



JfrJmed by W. Stratford, Crown-Covrt, Temi>lc-i5.^r. 



