Reports of Trials for Murder by Poisoning; / by Prussic Acid, Strychnia, Antimony, Arsenic, and Aconita. Including the trials of Tawell, W. Palmer, Dove, Madeline Smith, Dr. Pritchard, Smethurst, and Dr. Lamson, with chemical introduction and notes on the poisons used

by G. Lathom Browne; active 19th century C. G. Stewart

INDEX

[583]

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ADDENDA.

A.

The following is my own experience of the differences between strychnia and morphia.—C. G. S.

	MORPHIA.	STRYCHNIA.
Concent. H2SO4—cold. —”———”—–warmed. To this warmed solution add:—	If pure, nothing at first. Violet, not strong.	If pure, nothing. Some yellow-brown. Do.
MnO2.	Red, changing slowly to brown, then orange. On dilution, yellow-brown.	Deep blue purple —tored purple— cherryred—finally (changes slow). On dilution, rich orange red.
K6Cfy2.	Violet, changing to orange; not strong. On dilution, at once destroyed to greenish-yellow solution, turning blue.	Same changes, but more rapid and less distinct. On dilution, at once destroyed to greenish-yellow solution.
K2Cr2O7.	Red-brown, orange-brown, green. On dilution, green.	Same as with MnO2, but more evanescent and rapid in change. On dilution, at once removed to yellowish-brown.
HNO3 concent.	Intense brownish- red, changing to brown— bleached by SnCl2.	In the cold, nothing if pure. On warming, orange-yellow —then SnCl2 brown with excess to yellow.

B.