SUPPLEMENTARY    NUMBER. 
CONTENTS. 
LXI.  On  the  Origin  of  the  Earth's  Magnetism,  and  the  Magnetic 
Relations   of  the   Heavenly   Bodies.     By   F.   Zollner.     (With  a 
Plate.) page  48 
LXII.  Reply  to  "An  Examination  of  the  recent  attack  on  the  Atomic 
Theory."     By  C.  R.  A.  Wright,  D.Sc.  Lond 5C 
LXIII.  On  a  New  Hygrometer.     By  A.  de  la  Rive   51 
LXIV.  On  the  History  of  the  Second  Law  of  Thermodynamics,  in 
reply  to  Professor  Clausius.     By  Professor  Tait    51 
LXV.    On   Electrolysis,   and  the   Passage  of  Electricity  through 
Liquids.     By  G-.  Quincke 51 
LXVI.  Water- Analysis  and  Water.     By  J.  Alfred  Wanklyn, 
Corresponding  Member  of  the  Royal  Bavarian  Academy  of  Sciences.  52 
LXVII.  Proceedings  of  Learned  Societies  : — 
Royal  Society  : — Prof.  J.  C.  Maxwell  on  the  Induction  of 
Electric  Currents  in  an  Infinite  Plane  Sheet  of  uniform  con- 
ductivity ;  Mr.  W.  Whitehouse  on  a  New  Hygrometer. .  529-54 
Geological  Society  : — Messrs.  T.  R.  Jones  and  W.  K.  Parker 
on  the  Foraminifera  of  the  Family  Rotalinse  (Carpenter)  found 
in  the  Cretaceous  Formations,  with  Notes  on  their  Tertiary 
and  Recent  Representatives ;  the  Rev.  J.  F.  Blake  on  the 
Infra-lias  in  Yorkshire 543-54 
LXVIII.  Intelligence  and  Miscellaneous  Articles: — 
Researches  on  the  Reflection  of  Heat  at  the  Surface  of  Polished 
Bodies,  by  M.  P.  Desains    54! 
Prize  Question  proposed  by  the  Danish  Royal  Society  of  Sciences 
for  the  year  1872 54 
Anomalous  production  of  Ozone,  by  Henry  H.  Croft,  Professor 
of  Chemistry,  University  College,  Toronto 54 
Index 54 
With  Title-page,  Contents,  &c. 
%*  It  is  requested  that  all  Communications  for  this  Work  may  be  addressee 
post-paid,  to  the  Care  of  Messrs.  Taylor  and  Francis,  Printing  Office,  Re 
Lion  Court,  Fleet  Street,  London. 
