British Association. 295 
“On the Constitution and Rational Formula of Narcotine.” By Dr 
Matruisssen, and G. C. Foster. 
“ Report on the Metallurgy of the District.” By Mr I. L. Bex, Mr 
T. Sopwitu, Dr Ricwarpson, and Mr T. SPENcER. 
“On the Separation of Lead and Antimony.”’ By Dr Ricuarpson. 
“On Titanium in Iron.” By Dr Ritey.—Titanium appeared in small 
cubical crystals, and had long been observed in the hearts of blast 
furnaces, being always found in those that were used for making the 
best grey iron. Titanium ought no longer to be considered one of the 
rarer elements. It occurred very generally, and was a universal con- 
stituent of ail clays. Stourbridge bricks contained 1:05 per cent. of 
titanium, and that estimation was much too low, because it was a diffi- 
cult substance to determine. In mining shales he had found titanium— 
in some up to 3 or 4 percent. The object of the paper, however, was to 
prove that under certain conditions it formed a constituent part of pig- 
iron, and appeared to have some beneficial effects in the manufacture of 
iron and steel. It acted somewhat similarly to manganese. 
“On Thallium.” By Mr I. L. Bett. 
“On the Analysis of Chinese Iron.” By Dr Stevenson Macapam. 
“Qn Deposit in Blast Furnaces.”’ By Mr J. Parrinson.—The deposit 
was of a dark grey colour, and was impalpably fine powder. On analysis, 
it was found to contain as follows :— 
Protoxide of iron, : : ; ; 14:22 per cent. 
Oxide of zinc, . f aphae: * : TOS) of ‘92 
Sulphide of zine, . : ; Layo pe 
Alumina, . , , ; : S20 as 
Lime, . ; : : : begs. a 
Magnesia, . , CU ae 
Chloride of sodium, . : , 4°74 ,, 
Ammonia, . A : , : ; OF70) ny: 
Thallium, . - ‘ , : trace 
Sulphuric acid, . : 3 oes ,5 
Free sulphur, ’ : : . : COLT <2 
Silica, J Bao, {oi 
Carbonaceous matter, . ; ; s 4:50 4; 
99°84, «,, 
“On Zinc, Nickel, and Cobalt in Cleveland Ironstone.” By Mr J. 
Partinson.—The author has estimated the amounts of nickel and cobalt 
contained in pig-iron, malleable iron, and puddling furnace cinder, all of 
which were produced from Cleveland ironstone, without any admixture of 
other ores. The samples were kindly supplied by Messrs. Bolekow and 
Vaughan, of Middlesbro’. In each case, four ounces of the sample were 
operated upon. They contained as follows :— 
Malleable Puddling Furnace 
Figs Tnon: Iron. Cinder. 
Grains of nickel per lb, . . 1°88 1:56 0°313 
Grains of cobalt per lb, . . 0°32 0°24 0-062 
Per-centage of nickel, . . . 0°027 0:022 0:0045 
Per-centage of cobalt, . . . 0004 8-003 0:0009 
‘¢On the Manufacture of Aluminium.” By Mr Isaac L. Urit.—The 
author gave an account of the usual mode of manufacture of aluminium, 
and pointed out the presence of impurities which materially interfered 
