CONTENTS  of  N°  286.— Fourth  Series. 
XXX.  On  the  Relations  between  the  Atomic  Hypothesis  and  the 
Condensed  Symbolic  Expressions  of  Chemical  Facts  and  Changes 
known  as  Dissected  (Structural)  Formulae.  By  C.  R.  A.  Wright, 
D.Sc,  Lecturer  on  Chemistry  in  St.  Mary's  Hospital  Medical 
School page 
XXXI.  Researches  on  the  Electromotive  Force  in  the  Contact  of 
Metals,  and  on  the  Modification  of  that  Force  by  Heat.  By  E. 
Edlund    , ... 
XXXII.  Acoustical  Experiments  showing  that  the  Translation  of 
a  Vibrating  Body  causes  it  to  give  a  Wave-length  differing  from  that 
produced  by  the  same  Vibrating  Body  when  stationary.  By  Alfred 
M.  Mayer,  Ph.D.,  Professor  of  Physics  in  the  Stevens  Institute  of 
Technology,  Hoboken,  New  Jersey,  U.S.  America       
XXXIII.  On  the  Heat-Spectrum  of  the  Sun  and  the  Lime-Light. 
By  M.  S.  Lamansky  of  St.  Petersburg 
XXXIV.  On  the  Theory  of  the  Aberration  of  Light.  By  Professor 
Challis,  M.A.,  LL.D.,  F.R.S 
XXXV.  An  Attempt  to  Account  for  Anomalous  Dispersion  of 
Light.     By  Oscar  Emil  Meyer    
XXXVI.  On  Hyperdistributives.  By  Sir  James  Cockle,  F.R.S., 
Corresponding  Member  of  the  Literary  and  Philosophical  Society  of 
Manchester,  President  of  the  Queensland  Philosophical  Society,  &c. . 
XXXVII.  Notices  respecting  New  Books  : — Monthly  Notices  of  the 
Royal  Astronomical  Society.  The  President's  Address  on  the  Presen- 
tation of  the  Gold  Medal,  Feb.  1872. — Observations  of  Comets  from 
B.C.  611  to  a.d.  1640.  Extracted  from  the  Chinese  Annals  by  John 
Williams,  F.S.A. — Weather  Charts  issued  daily  by  the  Meteorolo- 
gical Office. — An  Elementary  Treatise  on  the  Differential  Calculus, 
containing  the  Theory  of  Plane  Curves,  with  numerous  Examples. 
By  Benjamin  Williamson,  A.M.,  Fellow  and  Tutor,  Trinity  Col- 
lege, Dublin. — New  Theory  of  the  Figure  of  the  Earth,  considered  as 
a  Solid  of  Revolution.  By  William  Ogilby,  Esq.,  M.A.  Trin.  Coll. 
Camb.  &c 305 
XXXVIII.  Proceedings  of  Learned  Societies  : — 
Royal  Society  : — The  Astronomer  Royal  on  a  supposed 
Alteration  in  the  amount  of  Astronomical  Aberration  of  Light, 
produced  by  the  passage  of  Light  through  a  considerable  thick- 
ness of  Refracting  Medium 
Geological  Society 314- 
XXXIX.  Intelligence  and  Miscellaneous  Articles: — 
An  Experiment  in  reference  to  the  question  as  to  Vapour- vesicles, 
by  T.  Plateau 
On  the  Absorption-spectra  of  Chlorine  and  Chloride  of  Iodine,  by 
D.  Gernez 
On  the  Mean  Motions  of  Jupiter,  Saturn,  Uranus,  and  Neptune, 
by  Professor  Daniel  Kirkwood     
It  is  requested  that  all  Communications  for  this  Work  may  be  addr» 
post-paid,  to  the  Care  of  Messrs.  Taylor  and  Francis,  Printing  Office 
Lion  Court,  Fleet  Street,  London. 
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