5-28  Mr.  de  luc  on 
where  fo  many  artifts  will  underhand  me  by  this  defcrip- 
tion,  and  may  even  fupply  what  I have  omitted.  And 
ihould  any  one  be  defirous  of  undertaking  it,  I would 
willingly  aflift  him  by  communicating  to  him  fome 
ideas  for  the  execution,  which  would  have  made  this 
paper  too  long. 
Co7iclufion  with  refpeSi  to  phyjical  meafures  in  general. 
Though  the  Areometer  is  ufeful  in  itfelf,  the  chief 
reafon  of  my  dwelling  upon  it  was  to  give  an  example 
of  the  general  rule  I have  before  eftablifhed. 
Here  are  in  this  cafe  only  three  phylical  effects,  the 
degrees  of  which  are  not  proportionate  to  their  apparent 
caufes,  and  which  are  united  under  the  appearance  of  one 
fingle 
prendre  fur  cette  defcription,  et  de  fuppleer  meme  a ce  que  je  pourrois  avoir 
ommis:  etje  me  ferois  d’ailleurs  un  plaifir  d’aider  le  premier  qui  voudra  l’entre- 
prendre,  en  lui  communiquant  quelques  idees  de  detail  dans  Fexecution,  qui 
auroient  trop  allonge  ce  memoire. 
Ctmclufion  fur  les  Mefures  phyfiques  en  general \ 
Quoique  FAreometre  ait  de  Futilite  par  lui  meme,  je  me  fuis  principalement 
arrete  a expliquer  fes  principes,  pour  donner  un  exemple  de  la  regie  generale 
que  j’ai  etablie. 
Voila,  dans  un  feul  cas,  trois  efFets  phyliques  dont  les  degres  ne  font  pas  pro- 
portionnels  a ceux  de  leurs  caufes,  reunis  meme  fous  l’apparence  d’un  feul, 
% favoir 
