AMERICAN ANTIMONY.

A Baltimore dispatch informs us that a carload of antimony, ten tons

in all, was lately received by C.L. Oudesluys & Co., from the southern

part of Utah Territory, being the first antimony received in the East

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

I think it is desirable that some one should give to this section a

record, even although it must be but a brief and an imperfect one, of

certain of the improvements that have been made, and of some of the

progress that has taken place, during the last fifty years, in the

practical application of mechanical science, with which science and

its applications our section is particularly connected. I regret to

say that, like most of the gentlemen who sat on this platform

yesterday, who, I think, were, without exception, past presidents of

the section, I am old enough to give this record from personal

experience. Fifty years ago I had not the honor of being a member, nor

should I, it is true, have been eligible for membership of the

association; but I was at that time vigorously making models of

steam-engines, to the great annoyance of the household in which I

lived, and was looking forward to the day when I should be old enough

to be apprenticed to an engineer. Without further preface, I will

briefly allude to some of the principal developments of a few of the

branches of engineering. I am well aware that many branches will be

left unnoticed; but I trust that the omissions I may make will be

remedied by those present who may speak upon the subject after me.

Scientific American Supplement, No. 312, December 24, 1881 · 第 20 / 76 题