from the mines of that section. The antimony was mined about 140 miles
from Salt Lake City. The ore is a sulphide, bluish gray in color, and
yields from 60 to 65 per cent. of antimony. All antimony heretofore
came from Great Britain and the island of Borneo, and paid an import
duty of 10 per cent. ad valorem, and there is also some from Sonora.
It is believed that with proper rail facilities to the mines of the
West there will be no need of importations.

* * * * *




SOME OF THE DEVELOPMENTS OF MECHANICAL ENGINEERING DURING THE
LAST HALF-CENTURY.[1]

[Footnote 1: Paper read in Section G (Mechanical) of the British
Association.]

By SIR FREDERICK BRAMWELL, V.P. Inst. C.E., F.R.S.,
Chairman of the Council of the Society of Arts.


I am quite sure the section will agree with me in thinking it was very
fortunate for us, and for science generally, that our president
refrained from occupying the time of the section by a retrospect, and
devoted himself, in that lucid and clear address with which he favored
us, to the consideration of certain scientific matters connected with
engineering, and to the foreshadowing of the directions in which he
believes it possible that further improvements may be sought for. But