| " " Didymium | --+--------------------------------------+------------------
-------------- Blue. --+--------------------------------------+------------------
-------------- | Oxide of Cobalt | Oxide of Cobalt. | | " Copper, blue to | | greenish-blue. --+--------------------------------------+------------------
-------------- Green. --+--------------------------------------+------------------
-------------- | Oxide of Copper | Oxide of Chromium, with | | yellowish tinge. --+--------------------------------------+------------------
--------------

A. BORAX

2.  Reducing flame

--+--------------------------------------+-------------

-------------------
Color of Bead.
--+---------------------------------------------------------

--------------
|               Substances which produce this color
+--------------------------------------+--------------------

------------
|    in the hot bead.                  |      in the cold bead.
--+--------------------------------------+------------------

--------------
Colorless
--+--------------------------------------+------------------

--------------
| Silica                               | Silica
| Alumina                              | Alumina
| Oxide of Tin                         | Oxide of Tin    _
| Baryta                               | Baryta           \
| Strontia                             | Strontia          \
| Lime                                 | Lime               |
| Magnesia                             | Magnesia           |With
| Glucina                              | Glucina            |intermittent
| Yttria                               | Yttria             }flame
| Zirconia                             | Zirconia           |opaque-white.
| Thoria                               | Thoria only when   |
|                                      |   saturated        |
| Oxide of Lanthanum                   | Oxide of Lanthanum |
|   "   "  Cerium                      |   "   "  Cerium   /
| Tantalic Acid                        | Tantalic Acid   _/
| Oxide of Didymium                    | Oxide of Didymium
|   "   "  Manganese                   |   "   "  Manganese
|                 _                    |               _
| Niobic   Acid    \ In small          | Niobic   Acid  \ In small
| Pelopic   "       } proportions.     | Pelopic   "    } proportions.
|                 _/                   |               _/
|                _                     |                  _
| Oxide of Silver \                    | Oxide of Silver   \  After
|   "   "  Zinc    \ After long        |   "   "  Zinc      \ long
|   "   "  Cadmium | continued         |   "   "  Cadmium   | continued
|   "   "  Lead    } blowing.          |   "   "  Lead      } blowing.
|   "   "  Bismuth | Otherwise         |   "   "  Bismuth   | Otherwise