﻿272 
  A. 
  M. 
  Mayer— 
  On 
  the 
  Flotation 
  of 
  

  

  Experiments 
  on 
  Brass 
  ring. 
  

  

  Diameter 
  of 
  axis 
  of 
  ring 
  5-183 
  

  

  Circumference 
  " 
  " 
  16-283 
  

  

  Temp, 
  of 
  water 
  16°. 
  

  

  W 
  

  

  2-781 
  max. 
  

   •759 
  min. 
  

   •767 
  

   •765 
  

   •762 
  

   •761 
  

  

  2-7658 
  

  

  W 
  2-7658 
  

  

  — 
  — 
  ;= 
  — 
  16985r=w 
  

  

  Circ' 
  16-283 
  

  

  a 
  w-P 
  10 
  '16985 
  — 
  -00784 
  

  

  A 
  = 
  ^---cos 
  1\ 
  —— 
  -*-*999048 
  = 
  '08107 
  

  

  Experiments 
  on 
  ring 
  of 
  German 
  Silver. 
  

  

  Diameter 
  of 
  axis 
  of 
  ring 
  _ 
  5*382 
  

  

  Circumference 
  " 
  16*908 
  

  

  Temp, 
  of 
  water, 
  16°. 
  

  

  

  2-863 
  

  

  

  •895 
  

  

  

  •861 
  

  

  

  •901 
  max. 
  

  

  

  •863 
  

  

  

  •856 
  min. 
  

  

  

  2*873 
  = 
  mean. 
  

  

  

  W. 
  2-873 
  

  

  -^-. 
  — 
  — 
  — 
  - 
  == 
  -16992 
  = 
  w 
  

   circ' 
  16*908 
  

  

  1 
  11 
  —p 
  

  

  2 
  

  

  •16992 
  - 
  00784 
  

   - 
  cos 
  2£° 
  = 
  =- 
  1 
  

  

  2 
  2 
  

  

  999048 
  = 
  -08111 
  

  

  The 
  tables 
  of 
  experiments 
  on 
  these 
  five 
  rings 
  show 
  that 
  the 
  

   average 
  difference 
  of 
  the 
  mean 
  of 
  the 
  minimum 
  and 
  maximum 
  

   measures 
  from 
  the 
  mean 
  equals 
  -^-^ 
  of 
  the 
  mean 
  value 
  of 
  W. 
  

  

  The 
  values 
  of 
  A, 
  omitting 
  the 
  last 
  decimal 
  figure 
  as 
  of 
  no 
  

   significance, 
  are 
  as 
  follows 
  : 
  

  

  