140 



Player (Mr.) on the application of an- 

 thracite coal, 130. 



Poisoning by the vapours of burning 

 charcoal, 101. 



Polarization, elliptic, on the wave 

 theory as connected with, 2. 



, on the use of the oxy-hydrogen 



microscope in exhibiting the phse- 

 nomena of, 8. 



Polarizing light, on the use of mica 

 in, 6. 



Porter (G, R.) on the systematic col- 

 lection of the statistics of agricul- 

 ture, 116. 



Powell (Prof.) on a new case of inter- 

 ference of light, 1. 



— — on some optical phaenomena ob- 

 sei-ved by Sir David Brewster, 1. 



on the wave theory as connect- 

 ed with elliptic polarization, 2. 



on the academical statistics of 



the University of Oxford, 119. 



Pritchard (Dr.) on the extinction of 

 the human races, 89. 



RadclifFe observatory, on the rate of 

 the transit-clock in the, 28. 



Railway wheels, new, 128, 131. 



■ foundations, on, 132. 



Railways, an apparatus for use in 

 working, 129. 



Rawson (R. W.) on the criminal sta- 

 tistics of England and Wales, 117. 



Rees (Dr. G. O.) on the existence of 

 fluoric acid as a constituent of cer- 

 tain animal substances, 56. 



Reich (Prof.) on the electrical currents 

 on metalliferous veins, 34. 



Reid (Dr. D. B.) notice of a chemical 

 abacus, 65. 



Respiration, on the sounds produced 

 in, 100. 



of deteriorated atmospheres, on 



the, 108. 



Richardson (T.) on the composition 



of idocrase, 52. 

 Rocks of South Devon and Cornwall, 



on the, 68. 

 Ruminants, on the follicular stage of 



dentition in the, 82. 

 Russell (J. S.) on the ceconomical 



proportion of power to tonnage in 



steam vessels, 124. 



Rutlandshire, on the educational con- 

 dition of, 110. 



, state of the working classes 



in, 112. 



Sandpipes, in the chalk near Norwich, 



origin of, 65. 

 Saurians and sauroid fishes, organic 



remains of, 73. 

 Schafhaeutl (Dr.) on the combinations 

 of the constituents of cast iron, 

 steel, and malleable iron, 49. 

 Schonbein (Prof.), new electro-che- 

 mical researches, 31. 



Sharp (W.) on the formation of local 

 museums, 65. 



Shells, marine, found in gravel near 

 Worcester, 70. 



Shepard (Dr.) observations on mete- 

 oric iron found in the United States, 

 54. 



, collection of organic remains, 78 . 



Shetland, zoological researches in, 79. 



Shropshire, on the foot-prints and 

 ripple-marks of the new red sand- 

 stone of Grinshill Hill, 75. 



Silk, experiment on the growth of, 

 at Nottingham, 87. 



Silurian rocks in Westmoreland, on a 

 section across the, 67. 



Small- pox, cause of the increase of, 

 104. 



, on the newvaccine virus of 1838, 



105. 



Smythies (J. K.) on the motion of 

 points or atoms subject to any law 

 of force, 24. 



Solar light, on an apparatus for ob- 

 taining an estimate of the intensity 

 of, 6. 



Solar rays, on the chemical action of 

 the, 9. 



Sounds produced in respiration, ou 

 the, 100. 



Spectrum, prismatic, on a remarkable 

 property of the extreme red rays of 

 the, 9. 



Spencer (T.) on the deposition of me- 

 tals by voltaic action, 38. 



Spina bifida, case of, 101. 



Staffordshire, on an economical use of 

 the granitic sandstone of, 77' 



Statistics, 110. 



