• ! 
INDEX. 
Williams, Rev. Mr. account of a remarkable thunder florin^ 
p. 71, 72. 
y 
Yellow dies, by means of Indigo^ defcribed by Mf. 
Woulfe, p. 129. 
Z. 
Zehra^ a new fifh brought over by Coriimodore Byron, 
and defcribed by Mr. Tyfon, p< 247. A fpecies of 
perch, 248. 
The Number of P L A T E S In this Volume 15 
Twenty-two. 
finis, 
