[219]. Vol. ii, p. 86.

[220]. The chemist may satisfy himself of this fact by heating some arsenious acid on a piece of platina foil, and then alternately raising and depressing it into the blue flame of the spirit, when corresponding changes in odour will take place in the fumes.

[221]. See page [184], Note.

[222]. See Mr. Marshall’s Remarks, &c.

[223]. See the case reported by Dr. Yelloly, in the 5th volume of the Edinburgh Med. and Surg. Journal.

[224]. Epist. 168.

[225]. De Pest. Hist. 99. Annot.

[226]. De Peste Lond. p. 239.

[227]. Recueil Periodique de la Societé de Med. de Paris, tom. vi. p. 22.

[228]. Nouveaux Elemens de Med. operat. par J. P. Roux.