[ 44i ] 
XV. A Letter from the Reverend Henry Miles 
D. D. and F. R. S. to the Prefident ; con- 
taining Obfervations of luminous Emana- 
tions from human Bodies, and from Brutes^ 
with fome Remarks on Electricity. 
SIR, 
*tad June >3 ^| 'HE many Experiments lately made 
74v in Eledricity, and the furpriftng 
Effeds which have been produced, are Encourage- 
ments to proceed in fuch Trials, that by an advancing 
Knowledge in the Nature of thefc ftrange Rhceno - 
menu , we may have growing Tlopes fome Benefit will 
accrue to Mankind from them, as well as Entertain- 
ment to the Curious. 
1 fhould therefore think myfelf very happy, could I 
contribute any thing towards an Improvement in this 
Branch of natural Knowledge, were it but by fug- 
gefting what Perfons of happier Talents might make 
a more lucctfsful Ufe of, than I am able to do. 
The following Accounts, which relate to an odd 
R hanomenon, that has been feveral times obferved 
in fome human Bodies, as well as in thole of fome 
brute Animals, I was, for a good while, backward 
to offer to the Confideration of thofe who are atten- 
tive to eledric Experiments, fearing they would be 
thought a little foreign to the Subjed } but this Ap- 
prehenfion has, in a great meafure, been removed, 
by confidering the Remark which the late ingenious 
and induftrious Member of the Royal Society Mr. 
Stepk* 
