--Its uses.--2 illustrations. 9796

X. TECHNOLOGY.--Apparatus for Testing Champagne Bottles and
Corks.--Ingenious apparatus due to Mr. J. Salleron, for use
especially in the champagne industry.--2 illustrations. 9786

Celluloid.--Notes of the history and present method of
manufacture of this widely used substance. 9785

Centrifugal Extractors.--By ROBERT F. GIBSON.--The second
installment of this extensive and important paper, giving
many additional forms of centrifugal apparatus--12
illustrations. 9789

Cotton Industries of Japan.--An interesting account of the
primitive methods of treating cotton by the Japanese.--Their
methods of ginning, carding, etc., described. 9788

Gas from Oil.--Notes on a paper read by Dr. Stevenson
Macadam at a recent meeting of the British Gas Institute,
giving his results with petroleum gas. 9787

Improved Biscuit Machine.--A machine having a capacity for
making 4,000 small biscuits per minute.--1 illustration. 9787

Improved Cream Separator.--A centrifugal apparatus for
dairy use of high capacity.--3 illustrations. 9787

The Manufacture of Salt near Middlesbrough.--By Sir
LOWTHIAN BELL, Bart., F.C.S.--The history and origin of
this industry, the methods used, and the soda ash process
as there applied. 9788

* * * * *

THE BRITISH ASSOCIATION.

[Illustration: THE BRITISH ASSOCIATION AT MANCHESTER PORTRAITS OF THE
PRESIDENT AND PRESIDENTS OF SECTIONS ]

The fifty-seventh annual meeting of the British Association was opened
on Wednesday evening, Aug. 31, 1887, at Manchester, by an address from
the president, Sir H.E. Roscoe, M.P. This was delivered in the Free
Trade Hall. The chair was occupied by Professor Williamson, who was
supported by the Bishop of Manchester, Sir F. Bramwell, Professor
Gamgee, Professor Milnes Marshall, Professor Wilkins, Professor Boyd
Dawkins, Professor Ward, and many other distinguished men. A telegram
was read from the retiring president, Sir Wm. Dawson, of Montreal,
congratulating the association and Manchester on this year's meeting.
The new president, Sir H. Roscoe, having been introduced to the
audie