194 



INDEX II. 



without welding, invented by M. Sisco, 



of Paris, 162. 

 Greenland, on the arctic current around, 



112. 

 Gregory (Prof.) on new forms of Diato- 



maceae from the Firth of Clyde, 83. 

 Grotto del Cave, on the gases of the, 



58. 

 Grove (W. R.) on the stratified appear- 

 ance of the electrical discharge, 10. 

 Gun, on the manufacture of the large 



wrought-iron, 162. 



Hail-storm in North Staffordshire, on a 

 remarkable, 39. 



Hancock (Albany) on the anatomy of 

 the Brachiopoda, 94. 



Hancock (W. Neilson) on the definition 

 of income in economic science com- 

 pared with the existing taxes on in- 

 come, 144. 



Harkness (Prof.) on some new fossils 

 from the ancient sedimentary rocks of 

 Ireland and Scotland, 65 ; on the lignites 

 of th» Giant's Causeway and the Isle of 

 Mull, 66 ; on the jointing of rocks, 65. 



Harris (Sir W. S.) on the law of electric 

 and magnetic force, 1 1 . 



Hartland (F. D.), Vesuvius and its erup- 

 tions, illustrated by a collection of draw- 

 ings by W. Baylis, 111 ; on the most 

 ancient map of the world, from the 

 Propaganda, Rome, ib. 



Head, on the morphological constitution 

 of the skeleton of the vertebrate, 93. 



Heat, 9 ; on the quantity of, developed by 

 water when violently agitated, 165. 



Henfrey (Arthur), on the development of 

 the embryo of flowering plants, 85. 



Hennessy (Prof.) on the physical struc- 

 ture of tlie earth, 26 ; on isothermal 

 lines, 39 ; on an instrument for obser- 

 ving vertical currents in the atmosphere, 

 40 ; on the relative distribution of land 

 and water as aftecting climate at dif- 

 ferent geological epochs, 66 ; on the ho- 

 molographicalmapsof Mr.Babinet, 112; 

 on the inundation of rivers, 162. 



Henslow (the Rev. Prof.) on the triticoidal 

 forms of iEgilops, and on the specific 

 identity of Centaurea nigra and C. ni- 

 grescens, 87. 



Herodotus, on the eclipse of the sun men- 

 tioned in the first book of, 27. 



Highley (Samuel), crystallogenesis, and 

 the equivalent in the mineral kingdom 

 corresponding to geographical distribu- 

 tion in the animal and vegetable king- 

 doms, 172. 



Hincks (Rev. Dr. Edward) on the eclipse 



of the sun mentioned in the first book 

 of Herodotus, 27. 



Homolographical maps of M. Babinet, on 

 the, 112. 



Hordwell, on a new species of anoplothe- 

 rioid mammal from the upper eocene stra- 

 ta, 72; on the Dichodon cuspidatus, ib. 



Hornbeck (Dr. H. B.) on some minerals 

 from the Isle of St. Thomas, 66. 



Horsley (John) on the conversion of tan- 

 nin into gallic acid, 52 ; on testing for 

 strychnia,brucia,&c.,53 ; new method of 

 instituting post-mortem researches for 

 strychnia, ib. ; on a new method of ex- 

 tracting the alkaloids strychnia and bru- 

 ciafrom nux vomica wi thout alcohol, 54 ; 

 experiments on animals with strychnia, 

 and probable reasons for the non-de- 

 tection of the poison in certain cases, 

 55. 



Huggate, meteorological observations for 

 1855, made at, 47. 



Hull (Edward) on the south-easterly at- 

 tenuation of the oolitic, liassic, triassic, 

 and permian formations, 67. 



Hydrogen, on a new combination of car- 

 bon, oxygen and, formed by the oxida- 

 tion of graphite, 50. 



Ichthyosauri, on the skin and food of, 69. 



Income, on the definition of, in economic 

 science, 144. 



India, on <rold in, 60 ; on a new route to, 

 114. 



Inundations, on the causes of great, 31. 



Ireland, on some new fossils from the an- 

 cient sedimentary rocks of, 65 ; table of 

 the population of, at different intervals 

 from 1603-1856, 142. 



Irminger (Capt.) on the arctic current 

 around Greenland, 112. 



Iron, on the manufacture of, without fuel, 

 162 ; on masses of, made at the Mer- 

 sey iron-works, Liverpool, ib. ; on a 

 method of uniting iron with, without 

 welding, ib. 



Isle of Wight, on the Dichodon cuspidatus 

 from the upper eocene of the, 71. 



Isothermal lines, on, 39. 



Japan, on some volcanic islets to the 

 south-east of, 110. 



Jefl^ery (Henry M.) on a theorem in com- 

 binations, 3 ; on a particular class of 

 congruences, 6. 



Jenyns (Rev. L.) on the variation of spe- 

 cies, 101. 



Jopling (R. Thompson) on the mortality 

 among officers of the British army in 

 the East, 144. 



