On the Manufacture of Tin-plate. 379° 
making tin-plate into this country, I do not 
find that any manufacture of that article was 
established in these kingdoms until some time’ 
between the years 1720 and 1730, which 
must have been long after Mr. Yarranton’s 
death. The first establishment of this kind 
was, I believe, fixed in Monmouthshire,’ 
where it continued to flourish many years.* 
-- About the time that this manufactory was 
established, the amiable and intelligent M.: 
Reaumur, to whom the French are indebted’ 
for a new mode of graduating the thermo-' 
meter, and for many discoveries and improve- 
ments in the arts,t—undertook to discover 
the method of making tin plates for the 
_.* Upon further enquiry, I find that this was at the. 
town of Ponty-Pool; and it is remarkable, that after the. 
lapse of nearly 100 years the manufacture has recently 
been re-established at the same town, ona very extensive 
seale. . 
+ It was Mons. Reaumur who was the means of intro- 
ducing into France the methods of making Porcelain; 
for when Francis D’Entrocolles, who had resided many 
years in China as a Christian Missionary, sent to France 
specimens of the materials used by the Chinese in their 
Porcelain, M. Reaumur immediately instituted a series of 
experiments to discover the method of imitating their pro- 
ductions, and in the years 1727 and 1729, communicated 
the result of his researches to the Academy of Sciences ; 
and his two memoirs were published by the Society, in 
their Transactions. 
