﻿1874.] 
  

  

  Magnetic 
  Conditions 
  of 
  the 
  Blood. 
  

  

  117 
  

  

  The 
  thin 
  glass 
  vessel 
  for 
  holding 
  the 
  medium 
  in 
  which 
  the 
  testing-tube 
  

   was 
  suspended 
  consisted 
  of 
  an 
  ordinary 
  beaker 
  (fig. 
  2) 
  of 
  sufficient 
  

  

  Kg. 
  1. 
  

  

  rig. 
  2. 
  

  

  

  

  ( 
  

  

  ■ 
  

  

  

  internal 
  capacity 
  to 
  allow 
  of 
  the 
  testing-tube 
  rotating 
  freely, 
  without 
  risk 
  

   of 
  touching 
  the 
  sides. 
  The 
  mouth 
  of 
  this 
  vessel 
  was 
  closed 
  with 
  a 
  cork 
  

   (fig. 
  3), 
  the 
  cork 
  being 
  pierced 
  with 
  two 
  glass 
  tubes, 
  to 
  which 
  were 
  

  

  attached 
  pieces 
  of 
  india-rubber 
  tubing, 
  capable 
  of 
  being 
  closed 
  when 
  

   required 
  by 
  means 
  of 
  strong 
  brass 
  clips. 
  This 
  cork 
  was 
  also 
  pierced 
  in 
  

   its 
  centre 
  by 
  a 
  small 
  copper 
  wire, 
  bent 
  into 
  a 
  crook 
  at 
  its 
  lower 
  end, 
  to 
  

   which 
  the 
  testing-tube 
  was 
  suspended. 
  The 
  wire 
  was 
  sufficiently 
  long 
  

   to 
  permit 
  of 
  the 
  testing-tube 
  being 
  raised 
  or 
  lowered 
  as 
  necessary 
  for 
  

   adjusting 
  the 
  ends 
  to 
  the 
  level 
  of 
  the 
  poles 
  of 
  the 
  magnet. 
  

  

  The 
  bottles 
  used 
  for 
  defibrinating 
  (fig. 
  4) 
  were 
  wide-mouthed, 
  and 
  

   capable 
  of 
  holding 
  two 
  pints 
  each 
  ; 
  they 
  were 
  well 
  corked, 
  and 
  the 
  corks 
  

   were 
  pierced 
  with 
  two 
  glass 
  tubes 
  with 
  india-rubber 
  tubing 
  attached, 
  

   similar 
  to 
  the 
  cork 
  shown 
  in 
  fig. 
  3. 
  Brass 
  clips 
  were 
  also 
  supplied. 
  

   Into 
  the 
  under 
  surface 
  of 
  these 
  corks 
  were 
  driven 
  four 
  strips 
  of 
  wood 
  

   sufficiently 
  long 
  to 
  reach 
  to 
  the 
  bottom 
  of 
  the 
  bottle, 
  and 
  these 
  acted 
  as 
  

   excellent 
  defibrinating 
  rods. 
  

  

  