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EXPERIMENT 1. 
I roox an equal quantity of an infufion of fuperfine green 
Tea, and of common bohea Tea, made equally ftrong ; and 
_alfo the fame quantity of the liquor remaining after diftillation 
(Secr. III. 1.), and of fimple water; into each of which, con- 
_ tained in feparate veflels, I put two drachms of beef, that had 
_ been killed about two days. jogs 
The beef, which was immerfed in the fimple water, became 
putrid in forty-eight hours ; but the pieces in the two infufions 
of Tea, and in the liquor remaining after diftillation, fhewed 
no figns of putrefaction, till after about feventy hours '. 
EXPERIMENT II. 
Into ftrong infufions of every kind of green and bohea Tea 
that I could procure, I put equal quantities of falt of iron ~ 
(fal martis), which immediately changed the feveral infufions 
into a deep purple colour’. 
| It 
* See Percival’s Experimental Effays, p. 119, et feq. wherein many ingenious ex- 
periments and obfervations are related. : 
* In this experiment, four ounces of infufion were:drawn from two drachms of 
each kind of Tea, and one grain of fal martis added to the refpective infufions. 
See 
