282 British Association for the Advancement of Science. 
Centesimal proportion which the trade between the United King- 
dom and the United States of America bore to the whole foreign 
trade of each country respectively, in each year, from 1821 to 
1835. 
Centesimal pipers nich Centesimal L proponiae which 
the trade with Englan the trade with the U. States 
Years. to the whole foreign och bore tot the wie foreign 
of the United States. exporttrade of England. 
1821 - - - - 16.95 
1822 - - 38.16 . . 18.57 
1823 - - 32.70 - - 15.41 
1824 - - 31.75 . - 15.86 
1825 - - 37.67 - - 13.31 
1826 - - 29.60 - - 14.77 
1827 - - 35.03 - - 18.87 
1828 - - 34.75 - - 15.78 
1829 - - 33.75 - . 13.45 
1830 - - 33.13 - - 16.02 
1831 - - 41.78 - - 24.36 
1832 - - 35.99 - - 15.00 
1833 - - 35.41 - - 19.36 
1934 - - 39.61 42 3643 
1835 - 41.76 - - 22.31 
The proportion which our export trade with the United States 
bore to our whole export trade was, in— 
1805 - - - - - 28.91 1807 -. - + - + 2h 
1806 - - - - - 30.31 18386 -.- - = < 9398 
Mr. Porter stated that in the foregoing observations all remarks, 
upon the state of convulsion into which this most important branch 
of our foreign trade has lately been thrown had been avoided, partly 
because its occurrence is too recent to allow of a sufficiently calm 
estimate being made of the cause or causes which led to the catas- 
trophe, but chiefly because it would be difficult, if not impossible, 
to enter upon that subject without departing from that line of strict 
statistical research which it is desirable to preserve in the proceed- 
ings of this Section of the British Association. In conclusion, he 
remarked that the shipments of British produce and manufactures, 
in the year 1836, amounted, according to the value declared by the 
shippers, to £53,368,571, of which sum America took £12,425,605, 
or 23.28 per cent. The total shipments in 1835 amounted to 
£47,372,270, of which America took £10,568,455, or 22.31 per 
