Part 46

As volatile alkaly may be obtained in large quantities from pit coal, and produced by proceſſes not dependant upon putrefaction, there is reaſon to believe that the vitriolic ammoniac may be formed in ſeveral ways not noticed by the author. W.

Footnote 25:

Acta Stockh. 1772.

Footnote 26:

From ſome experiments lately made I found that both tinkal and purified borax, required twice their weight of ſedative ſalt, to neutralize them perfectly ſo that they would no longer change vegetable blues to a green. W.

Footnote 27:

Baumé mem. des ſc. etr. tom. iv.

Footnote 28:

Phil. Tranſ. 1767.

Footnote 29:

HENCHEL Betheſda port.

Footnote 30:

BOMARE Dictionaire.

Footnote 31:

I have lately diſcovered a ſpecimen of TERRA PONDEROSA aerata got out of a mine in this kingdom. It is very pure, and in a large maſs. As this ſubſtance is a new acquiſition to mineralogy, and may be turned to uſeful purpoſes in Chemiſtry, I intend ſhortly to preſent a more particular account of it to the Royal Society. W.

Footnote 32:

Conf. Præl. SCHEFFERI, § 188, not. 2.

Footnote 33:

Margraaf Kl. Schrift. tom. II. p. 191.

Footnote 34:

I found it in conſiderable quantity in the Nevil Holt water, when I analyzed it ſix years ago; and it is probable that the Ballycaſtle water in Ireland, likewiſe contains it. W.

Footnote 35:

In the original the word is MAGNESIUM, but it is here changed, by the advice of Dr. Swediar and the concurrence of profeſſor Bergman to MANGANESIUM, in order to prevent confuſion from its ſimilarity to Magneſia. W.

Footnote 36:

Mr. MONNET de aquis mineralibus.

Footnote 37:

Opusc. chem. vol. I. p. 394–399.

Footnote 38: