Methyloxindole, 7.
bromo-, 7.
dibromo-, 3.

dichloro-, 4.

Methylparabromaniline, action of di-
azotised metanitraniline on, 425.

action of diazotised paranitrani-
line on, 418.

action of diazotised paratoluidine
on, 433.

Methylparachloraniline, action of di-
azotised paratoluidine on, 436.
Methylparanitraniline, action of di-
azotised parabromaniline on, 419.
Methylparatoluidine, action of di-

azotised parabromaniline on, 432.
action of diazotised parachlor-
aniline on, 436.

Methylparatolylthiocarbamide, 620.
Methylpentamethylene methyl carbinol
PROC., 143.

Methylpseudoisatin, 5.
Methylpseudoisatinoxime, 6.
Methylpseudoisatinphenylhydrazone, 5.
Methyltetrahydrobenzene methyl car-
binol, ortho-, PROC., 144.

ketone, ortho-, PROC., 144.

Minerals from Leadhills, 91.
Molecular weight, determination of the,
of substances in solution, especially
colloïds, PROC., 109.

of amylodextrin, 455.

weights of the carbohydrates, 462.
of the metals, 521.

Myoporum platycarpum, resin of, 665.

Naphthalenesulphonic acids, a-chloro-
B-amido-, isomeric, PROC., 36, 48.
B-, iodo-, PROC., 119.

Naphthol, B-, action of halogens on,
PROC., 71.

a-amido-, identification of, 120.
bromo-derivatives of, PROC., 71.
chloro-, PROC., 72.

chlorobromo-, PROC., 72.

Naphthol-a-sulphonic acid, B-, constitu-
tion of, PROC., 8.

Naphtholsulphonic acid, B-, bromo- and
chloro-derivatives of, PROC., 72.
Naphthylamine, ß-, isomeric sulphonic
acids of, 33.

B-, products of the sulphonation
of, at 100-105°, 35.

Naphthylaminesulphonic acid, Bronner's
B-, acids formed by displacing NH
in, by halogens, PROC., 74.
Naphthylaminesulphonic acids, B., from
B-naphthoisulphonic acids, 37.

properties of the four, 36.

Nickel periodate, 151.

Nitrates, ethereal, correspondence
between the magnetic rotation and
the refraction and dispersion of light
by, 755.

magnetic rotatory power of,

682, 724.
Nitric acid, amount of, in rain-water at
Rothamsted, 537.

544.

estimation of, in rain-water,

Solutions, the law of the freezing points
of, PROC., 149.

Soxhlet extractor, improved, 359.
Specific gravities and volumes of ben-
zene and its halogen-derivatives, 488.
volumes of similar compounds of
elements, 486.

Spectra, absorption, of cobalt-com-
pounds, PROC., 14.

of ferric chloride, PROC., 14.
of iron and cobalt, relation

between, PROC., 14.

of the elements of the didy-
mium-group, 259.

of the elements of the erbium-