INDEX ir. 



197 



mammal (Stereognathus ooliticus) from 



the Stonesfield slate, ib. 

 Oxygen, on a new combination of carbon 



and hydrogen, formed by the oxidation 



of graphite, 50. 

 Ozonometers of Dr. Schonbein and Dr. 



Moffat, remarks on a pamphlet by Dr. 



Herbert Barker on the, 41. 



Pacific, explorations through the valley 

 of the Atrato to the, in search of a 

 route for a ship-canal, 162. 



Palaeozoic basins of N. America, 1 76. 



Panticapaeuui (Kertch), on the site of the 

 ancient Greek city of, 115. 



Paraffine, on the composition of, from 

 different sources, 49. 



Parallel lines, on a new method of treat- 

 ing the doctrine of, 8. 



Pasley (Sir C. W.), plan for simplifying 

 and improving the measures, weights, 

 and money of this country, without 

 altering the present standards, 146, 



Patent Laws, on the, 164. 



Peach (Charles W.), notice of the natural 

 printing of sea-weeds on the rocks in 

 the vicinity of Stromness, 90. 



Pearls of the Conway river, on the, 92. 



Pearson (W. R.) on the compounds of 

 chromiuin and bismuth, 58. 



Pengelly (W.) on the Beekites found in 

 the red conglomerates of Torbay, 74, 



Periodic phsenomena, tables of forms for 

 obtaining reports on, 105. 



Permian formation, on the south-easterly 

 attenuation of the, 67. 



Perspective, on a new method of teach- 

 ing, 9. 



Photographs, on printing, 1 8 ; on engra- 

 ving collodion, by means of fluoric acid 

 gas, 58. 



Photographs of objects of natural history 

 exhibited, 105. 



Phillips (John) on a new method of ma- 

 king maximum self-registering thermo- 

 meters, 41. 



Phillips (Sir Thomas, Bart.) on an in- 

 stance of instinct in a caterpillar, 97. 



Physics, 1. 



Physiology, 83. 



Plants, on the development of the embryo 

 of flowering, 85. 



Poinsot's theory of rotation, on an instru- 

 ment to illustrate, 27. 



Poisoning, on the medical indications of, 

 97. 



Pollicipes, on a new species of, in the in- 

 ferior oolite near Stroud, Gloucester- 

 shire, 64. 



Poole (Henry), observations with thg 



aneroid metallique and thermometer' 



during a tour through Palestine and 



along the shores of the Dead Sea in 



1855, 41. 

 Pooley (Charles) on engraving collodion 



photographs by means of fluoric acid 



gas, 58. 

 Population, on the territorial distribution 



of the, for purposes of sanitary inquiry 



and social economy, 151. 

 Porcelain, on the progress, extent, and 



value of the, manufacture at Glasgow, 



153. 

 Poverty and crime, on some statistics 



bearing upon the relations existing be- 

 tween, 159. 

 Powell (Rev. Baden) on Fresnel's formulae 



for reflected and refracted light, 15. 

 Pritchard (Rev. C.) on a meteor seen at 



Cheltenham on Friday, August 8, 47 ; 



on the gases of the Grotto del Cave, 58. 

 Pterygotus of Scotland, on the great, 



75. 



Rae (Dr.), remarks on the Esquimaux, 

 119. 



Radiation, solar, on the constancy of, 28. 



Railway break, on a new, 162. 



Rankin (the Rev. T.), continuation of 

 meteorological observations for 1855, 

 at Huggate, Yorkshire, 47. 



Refraction, on various phaenomena of, 

 through semi-lenses, 9. 



Rennie (George) on the quantity of heat 

 developed by water when violently agi- 

 tated, 165 ; experiments to determine 

 the resistance of a screw when revolv- 

 ing in water at different depths and 

 velocities, 169. 



Respiration, on the mechanism of, in the 

 family of Echinidae, 101. 



Richardson (Dr. B. W.) on the cause of 

 the fluidity of the blood, 98. 



Rivers, on the inundation of, 162. 



Robin Hood's Bay, on the evidence of a 

 reef of lower lias rock, extending from, 

 to Flamborough Head, 80. 



Rocks, oolite, of the Cotteswold hills, 65 ; 

 on the jointing of, ib. ; on the igneous, 

 of Lundy and the Bristol district, 

 ib, ; on some new fossils from the an- 

 cient sedimentary, of Ireland and Scot- 

 land, ib. ; on the evidence of a reef of 

 lower lias extending from Robin Hood's 

 Bay to the neighbourhood of Flam- 

 borough Head, 80; parallelism of the 

 North American and European pale- 

 ozoic, 182. 



Rogers (Prof. H. D.) on the origin of sa- 

 liferous deposits, 75 ; on the correlation 



