' '  Accepting  the  fact  that  the  rapidity  of  succession  of
impulses  of  the  new  current  is  in  itself  sufficient  to  pro-
duce a  steady  circuit,  we  may  now  go  a  step  further  and
say  that  each  impulse  in  itself  consists  of  a  vast  number
and  range  of  oscillations  or  alternations  (of  one  hundred
millions  per  second),  and,  putting  all  the  facts  together,
we  may  doubtless  willingly  concede  that  a  current  must


THE  STATIC  INDUCED  CURRENT


:n


possess    eciually    i)Ositive    and    differiug    })hysiological
properties."    .    ..
"  Id  bis  earliest  publication  ujmn  tbis  subject  appear
tbe  following  for  i)bysical  results  tben  noted.  Tbe  event
has  sbown  tbat  many  of  tbese  were  tben  imperfectly
understood  and  ai>i)reciated,  but  tbe  question  before  us  is
wbetber  or  not  these  observed  results  were  in  fact  novel."

1.  ''  By  means  of  the  spark-gap  at  the  discharging  rod,
the  imperceptible  physical  effects  *  may  be  regulated  to
a  nicety,'  "  from  an  almost  imperceptible  tingle  up  to  the
extreme  rigid  flexion  of  the  arms.
