c iron, which was
malleable. After the removal of this a qualitative analysis was made of
the residual powder. Another gramme was also taken, without picking out
the metallic iron, and was tested for chlorine and for phosphoric acid.
The results of the qualitative analysis were that the stone contains
silica, magnesia, a little alumina, oxide of iron and nickel, a little
tin, an alloy of iron and nickel, phosphoric acid, and a trace of
chlorine. These ingredients being determined, the plan for a quantitative
analysis was laid out, and was duly executed by the usual and approved
methods The following are the results of this analysis, per centum:

Silica, with traces of tin 40.000
Magnesia 26.600
Peroxide of iron 27.700
Metallic iron 3.500
Metallic nickel 0.800
Alumina 0.400
Chlorine 0.049
Phosphoric acid not weighed --
______
99.049"

Messrs. Dewar and Ansdell analyzed the gases in the meteorite, of which
it contained three times its volume; the gases were in the following
proportions to each other:

Carbonic acid 61.29
Carbonic oxide 7.52
Hydrogen 30.96
Nitrogen 0.23
______
100.00

* * * * *

TELESCOPIC SEARCH FOR THE TRANS-NEPTUNIAN PLANET.

[Footnote: By David P. Todd, M.A., from the _Proceedings_ of the
American Academy of Arts and Science.]

In the twentieth volume of the _American Journal of Science_, at page
225, I gave a preliminary account of my search, theoretic and practical,
for the trans-Neptunian planet. I say _the_ trans-Neptunian planet,
because I regard the evidence of its existence as well-founded, and
further because, since the time when I was engaged upon this search,
nothing has in the least weakened my entire conviction as to its
existence in about that part of the sky assigned; while, as is well
known, the independent researches in cometary perturbations by Prof.
Forbes conducted him to a result identical with my own--a coincidence not
to be lightly set aside as pure accident.

That five years have elapsed since this coincidence was remarked, and the
planet is still unfound, is not sufficient assurance to me that its
existence is merely fanciful. In so far as I am informed, this spot of