﻿INDEX 
  TO 
  VOL. 
  XX. 
  

  

  A 
  

  

  Alison 
  (William 
  Pulteney), 
  M.D. 
  Defence 
  of 
  the 
  doctrine 
  of 
  vital 
  affinity, 
  385. 
  Observations 
  

  

  on 
  the 
  speculations 
  of 
  Dr 
  Brown 
  and 
  other 
  recent 
  metaphysicians, 
  regarding 
  the 
  exercise 
  of 
  the 
  

  

  senses, 
  513. 
  

   Anderson 
  (Thomas), 
  M.D. 
  On 
  the 
  constitution 
  of 
  codeine 
  and 
  its 
  products 
  of 
  decomposition, 
  57- 
  

  

  On 
  the 
  products 
  of 
  the 
  destructive 
  distillation 
  of 
  animal 
  substances, 
  247. 
  Researches 
  on 
  some 
  

  

  of 
  the 
  crystalline 
  constituents 
  of 
  opium, 
  347- 
  

   Animal 
  Substances, 
  on 
  the 
  products 
  of 
  the 
  destructive 
  distillation 
  of, 
  247- 
  

   Aqueous 
  Vapour 
  which 
  is 
  condensed 
  on 
  a 
  cold 
  surface, 
  on 
  the 
  weight 
  of, 
  299. 
  

  

  B 
  

  

  Barometer. 
  On 
  a 
  necessary 
  correction 
  to 
  the 
  observed 
  height 
  of 
  the 
  barometer, 
  depending 
  upon 
  the 
  

   force 
  of 
  the 
  wind, 
  377. 
  

  

  Brewster 
  (Sir 
  David). 
  On 
  the 
  optical 
  phenomena 
  and 
  crystallisation 
  of 
  tourmaline, 
  titanium, 
  and 
  

   quartz, 
  within 
  mica, 
  amethyst, 
  and 
  topaz, 
  547. 
  On 
  the 
  production 
  of 
  crystalline 
  structure 
  in 
  

   crystallised 
  powders, 
  by 
  compression 
  and 
  traction, 
  555. 
  On 
  circular 
  crystals, 
  607- 
  

  

  Bust, 
  notice 
  of 
  an 
  antique 
  marble, 
  417. 
  

  

  c 
  

  

  Capric 
  Acid, 
  on 
  a 
  new 
  source 
  of 
  obtaining, 
  and 
  remarks 
  on 
  some 
  of 
  its 
  salts, 
  219. 
  

  

  Centrifugal 
  Theory 
  of 
  Elasticity, 
  and 
  its 
  connection 
  with 
  the 
  theory 
  of 
  heat, 
  425. 
  

  

  Charr 
  (Salmo 
  umbla), 
  some 
  observations 
  on 
  the, 
  relating 
  chiefly 
  to 
  its 
  generation 
  and 
  early 
  stage 
  of 
  

  

  life, 
  321. 
  

   Codeine 
  and 
  its 
  products 
  of 
  Decomposition, 
  on 
  the 
  constitution 
  of, 
  57. 
  

   Comenic 
  Acid, 
  on 
  certain 
  salts 
  and 
  products 
  of 
  decomposition 
  of, 
  225. 
  

   C'ometary 
  Physics, 
  some 
  remarks 
  on 
  the 
  theories 
  of, 
  131. 
  

  

  Comvound 
  Series, 
  summation 
  of 
  a, 
  and 
  its 
  application 
  to 
  a 
  problem 
  in 
  probabilities, 
  541. 
  

   Coventry 
  (Andrew). 
  Notice 
  of 
  an 
  antique 
  marble 
  bust, 
  417. 
  

   Crystalline 
  Constituents 
  of 
  Opium, 
  researches 
  on 
  some 
  of 
  the, 
  347. 
  

  

  Crystalline 
  Structure, 
  on 
  the 
  production 
  of, 
  in 
  crystallised 
  powders, 
  by 
  compression 
  and 
  traction, 
  555. 
  

   Crystallised 
  Powders, 
  on 
  the 
  production 
  of 
  crystalline 
  structure 
  in, 
  by 
  compression 
  and 
  traction, 
  555. 
  

   Circular 
  Crystals, 
  607. 
  

  

  D 
  

  

  Dalmahoy 
  (James). 
  On 
  the 
  weight 
  of 
  aqueous 
  vapour 
  which 
  is 
  condensed 
  on 
  a 
  cold 
  surface, 
  under 
  

  

  given 
  conditions, 
  299. 
  

   Davy 
  (John), 
  M.D. 
  Some 
  observations 
  on 
  the 
  charr 
  (Salmo 
  umbla}, 
  relating 
  chiefly 
  to 
  its 
  generation 
  

  

  and 
  early 
  stage 
  of 
  life, 
  321. 
  Some 
  observations 
  on 
  fish, 
  in 
  relation 
  to 
  diet, 
  599. 
  

   Differential 
  Calculus, 
  on 
  a 
  process 
  in 
  the, 
  39. 
  

   Dynamical 
  Theory 
  of 
  Heat, 
  on 
  the, 
  261. 
  

   Dynamical 
  Equivalent 
  of 
  Temperature 
  in 
  Liquid 
  Water, 
  and 
  the 
  specific 
  heat 
  of 
  atmospheric 
  air 
  and 
  

  

  steam, 
  191. 
  

   VOL. 
  XX. 
  PART 
  IV. 
  8 
  S 
  

  

  