96 INDfiX. 



Hastings (Dr. C), observations on the division of the eighth pair 



of nerves, xi. 45. Reply thereto, 320. xii. 96. 

 Hatchett (C. Esq.), his process for purifying musty corn, v. 



-pref. vii. 

 Hatching fish, Chinese method of, xvii. 178 

 Hats, improvement in the manufacture of, ii. 180 

 Haussman (Prof.), remarks on the manufacture of Etruscan vases, 



XX. 163 

 Hauy (M.), notice of his theory of crystallization, iii. 365 



experiments of, on the insulation of electricity, ix. 206 



Hauyne, supposed discovery of, vi. 376 



Hawkins' (Mr.), mode of preparing emery, xix. 135 



Hay's (E. W. A., Esq.) description of an ancient monument found 



at Colchester, representing the Theban sphinx, xii. 1 

 Hay-plant of Northern India, description and uses of, xix. 1 

 Hayotte, advancement of the ground in the village of, xvii. 180 

 Heart, singular case of mal- conformation of, i. 49-55 



■ existence of nerves in, denied by Soemmerring, xiii. 102, 

 Asserted by Scarpa, 103 ; and again denied by Bichat, 103, 

 Observations on M. Le Gallois's account of the uses of the 

 cardiac nerves, 105 



Heart-wood of trees, remarks on the office of, v. 169 

 Heat and cold, effects of, on natural bodies, i. 299 

 Heat, effects of, on vegetation, ii. 47. Evolved during the coa- 

 gulation of the blood, 246. Experiment on the transmission 

 of,' 424. 



■ change of colour effected by, v. 129. Experiments and 

 observations on radiant heat, 364 



specific, of gases, ix. 403. Evolution of, by freezing, 409. 



Great degree of, at Bagdad, 423 



■ laws of the propagation of, xii. 180. Of the sun's rays dur- 

 ing the solar eclipse of September 7, 1820, 313 



of solutions crystallized by exposure to air, xiii. '^2^. 



in the moon's rays, remarks on, 229. Effect of, on the 



colour of the ruby, 427 

 and pressure, action of, on certain fluids, xv. 145. xvi. 91. 



