Hydrochloric acid | Arsenic | Marsh's test.
| |
| Some yellow samples | Reinsh's test; a small piece of
| contain no iron, | copper foil becomes coated
| but an organic salt,| on boiling in dilute acid.
| and give an alkaline|
| ash on ignition of |
| the residue after |
| evaporation |
| |
Calcium chloride | Calcium hydrate | The clear filtered solution made
| | with distilled water is alkaline
| | to test paper, and gives a
| | precipitate on breathing into it
| | through a tube.
| |
Pure (?) chemicals| Broken glass, bits | These impurities either float or
generally | of straw, wood, | sink on solution, and may easily
| paper, etc. | be seen.
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G.M. JONES, M.P.S.

* * * * *




THE CATASTROPHE AT CHANCELADE.