112 
INDEX. 
Page. 
Czudnowicz,C, cited 88 
Davis, J. Thomas, method of separating zir- 
conium devised by 77 
Dittrich, M., cited 100 
Doelter, C, modification in method devised 
by 92 
Drying oven for water determinations, de- 
scription and figure of 30-87 
Drying temperatures in moisture determi- 
nations 33 
Dunnington, F. P., cited 08 
Eakins, L. G., pycnometer method of 30 
Earths, rare, cautions regarding, in basic 
acetate method 57 (footnote) 
estimation of 77-78 
Erdmann,H., cited 107 
Evaporation, description and figure of radi- 
ator for ■ 23-24 
Feldspars, error in calculations of, based on 
incomplete analyses 17 
Ferric iron, determination of 59 
partial reducti< >n < >f, by faulty ignition . . 38, 50 
Ferrous iron, determination of 88-96 
figure showing Cooke's apparatus for 
determining 93 
uncertainties in estimation of 90 
Fischer, T., cited 87 
Fluorine, determination of 103-105 
qualitative detection of 105 
Foullon, H. von, cited 110 
Franz and Streit, cited 70 
method of separating zirconium devised 
by 70-77 
Fresenius, R., cited 02 (footnote) ,63 
Friedel, C, cited on water determinations. . 35 
Friedheim and Briihl, cited 01, 80 
Genth and Penfield, cited on precipitation of 
aluminum, iron, etc., by ammonia. . 55 
Gibl >s, Wolcott, cited 65 
Gilbert, J. P., cited on silica determination . 52-53 
Glucinum, rare occurrence of 21 
Gooch, F. A., amyl-alcohol method of sepa- 
rating lithium devised by 101 
apparatus devised by 20 
cited 60,107 (footnote) 
gravimetric method of estimating tita- 
nium devised by 71-73 
method of estimating boron devised by. 107 
methods of separating lithium devised 
by 99-100 
method of water determination devised 
by 41-45 
Gooch and Austin, cited 05, 78 
Gooch and Jones, cited 107 (footnote) 
Gravimetric method for determining chro- 
mium 80 
comparison of colorimetrie method with 81-82 
Grinding rock, mode of 31-32 
Harper and Penfield, cited on washing of 
precipitated alumina 55 
Hayes, A. A., cited 18 
Heidenreich and .Tannasch, boric-oxide 
method of decomposing silicates 
devised by 49-50 
Hess and Campbell, cited 00 
Hillebrand, W. F. , cited 19, 03 ( footnote ) . 
68,75,80 (footnote), 82, 91 (footnote), 110 
Page. 
Hillebrand and Ransome, cited 88 (footnote) 
Hillebrand and Stokes, cited 90 (footnote) 
Hydrofluoric acid, cautions concerning 
quality of 25 
Hydrofluoric-acid method of determining 
ferrous iron 92-94 
1 1 yd rogen peroxide, impurities of 25 
Hydrogen sulphide, metals precipitable by. 54 
Hygroscopic water, importance of deter- 
mining 35-36 
modes of determining 32-37 
Iron, estimation of 57-59 
ferrous, estimation of 88-96 
ignition of precipitate of 56 
methods of determining 54-60 
preliminary procedure when material 
is scanty 79 
solution by sodium carbonate fusion of 
traces of 58-59 
Jannasch, P., methods of water determina- 
tion devised by 4.5-47 
modes of silica determination devised 
by 48-50 
Jannasch and Cloedt, cited 01, 80 
Jannasch and Heidenreich, boric-oxide 
method of decomposing silicates 
devised by ' 49-50 
Jannasch and Weber, boric-oxide method 
for decomposing silicates devised 
by 50 
use of oxygen blast in treatment of re- 
fractory silicates by the boric-oxide 
method 49-50 
Jones and Gooch, cited 107 (footnote) 
Knop, A., cited 57 (footnote) 
Koninck, L. L. de, cited 66 
Koningh, L. de, colorimetrie method of de- 
termining chromium devised by.. 80 
Krauch, C, cited on tests for purity of 
chemical reagents 25 
Lindemann, Otto, cited 88 
Lithium, determination of 99-100 
Luedeking, C, cited 107 
Lunge, G. , cited 100 
Lunge and Millberg, cited 109 
Magnesium, collection and ignition of pre- 
cipitated phosphate of 66 
contamination by barium of precipi- 
tated phosphate of 07 
contamination bj calcium of precipi- 
tated phosphate of 67 
determination of 04-07 
separation of calcium and strontium 
from 62 
Manasse, 0., cited 84 (footnote) 
Manganese, determination of 00-61 
Mar, F. W., cited 75 
Mastbaum, Hugo, cited 06 
Metals precipitable by hydrogen sulphide. 54 
Microcosmic salt, cautions concerning qual- 
ity of 25 
Millberg ami Lunge, cited 109 
Mitchell and Wells, cited 57 (footnote) 
Mitscherlich method for determining fer- 
rous iron, defects of 88-89, 89-90 
modification of 90-92 
Moissan, H., cited 107 (footnote) 
