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AMMONIA.

succeeded in banishing it altogether; and it isstiJl sold under that name by druggists, thoughby scientific chemists it is more properly calledmuriat of ammonia.

EMILY.

By what means can the ammonia be separatedfrom the muriatic acid ?

« MBS. B.

By a display of chemical attractions ; but thisoperation is too complicated for you to under-stand, till you are better acquainted with theagency of affinities.

EMILY.

And when extracted from the salt, what kind ofsubstance is ammonia ? 1 ;

MRS. b. ' '

Its natural form at the temperature of the at- 1mosphere, when free from combination, is that of |gas ; and in this state it is called ammoniacal gas . 1But it mixes very readily with water, and can bethus obtained in a liquid form.

CAROLINE.

You said that ammonia was a compound; pray,of what principles is it composed ?