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was obliged to ufe refrigerating Medicines. I felt a 
Heaviness in my Head, as if I had a Stone lying upon 
it. It gave me twice a Bleeding at my Nofe, to 
which I am not inclined. My Wife, who had only 
received the electrical Flafli twice, found herfelf fo 
weak after it, that fhe could hardly walk. A Week 
after, fhe received only once the eledrical Flafli 5 a 
few Minutes after it fhe bled at the Nofe. 
I read in the News-papers from Berlin , that they 
had tried thefe eledrical Flafhes upon a Bird, and 
had made it fuffer great Pain thereby. I did not re- 
peat this Experiment 5 for I think it wrong to give 
fuch Pain to living Creatures. I therefore take, in- 
ftead of Men or Brutes, a Piece of Metal, and I put 
it upon a Stand under the eledrical Pipe, which Pipe 
propagates the Eledricity. To this Metal is fatten'd 
an iron Chain, which goes about the Bottle with 
Water, in which the brafs Wire is put, which Wire 
is fattened to the eledrical Pipe. 
When then the Elecdrification is made, the Sparks 
that fly from the Pipe upon the Metal are fo large 
and fo firong, that they can be feen (even in the 
Day time) and heard at the Diftance of fifty Yards. 
They reprefent a Beam like Lightning, of a clear and 
compad Line of Fire ; and they give a Sound that 
frightens the People that hear it. 
John Henry Winkler^ 
Frofejfor Ordinarius of the Greek and 
Latin Tongues at Leipftc . 
vn. 
