Index 



331 



PAGE 



Plants : 



Binomial nomenclature 

 of - - 239 



Classification of, natural 

 system - - 245 



Physiology of - 237, 249 

 Playfair, J. - 70, 131, 310 



Playfair, L. - - 202 



Pliny - 216, 217, 257 



"Poikilitic" - - 316 



Poisson ... 20 



Polarization of heat - - 133 

 Polarization of light - 19, 147 

 Pond, J. - - 60 



Potassium, discovery of - 113 

 Potential - - 123 



Poynting, John 152, 160, 161 



Powell, J. Baden 121, 140, 141 

 Prestwich, Sir J. - 317, 319 

 Prevost - - - - 156 

 Priestley, J. - - 14, 84, 238 

 Pringle, Sir J. - - 204 



Pritchard, C., astronomical 



research - 141 



Pritchard, M. - - 274 



" Principia " - - 10 



Professorships : 



Dates of foundation - 46 

 Proteaceae - 244 



Prout, W. - 181 



Pullen, Capt. - - 291 



Pump, air - 75, 181 



Turbine - - 151 



Pythagoras - 8 



Quaternions 



- 137 



Radiation of heat, see under 



Heat. 



Radio-activity - - 183 



Radiometer - 151, 180, 181 

 Radium, discovery of 183, 184 

 Rainbow, explanation - 120 



PAGE 



Ramsay, Sir W. - - 181 



Ramsden, J. - 81, 97 



" Ramsden's eyepiece " - 97 

 Rankine, W. J. M. - - 134 

 Ray, J. - 231, 233, 259, 261 

 Rayleigh, Lord - 122, 159, 164 

 Discovery of argon - 181 

 First step in colour photo- 

 graphy - - 173 

 Refraction, see under Light. 

 Renal oncometer - - 306 

 Respiration - - 296 

 Reinold, A. - - 160 

 Reynolds, O. - - 23, 26, 150 

 Rhodes, Cecil - - 168 

 Rhodium, discovery of - 145 

 Rickets - - 297 

 Roberts, I. - 170 

 Robison, J. - - 65, 68, 81 

 Rocks, arrangement in layers 309 

 Roebuck, J. - - 194 

 Roemer, O. - 62 

 Roentgen, W. C. - 183 

 Romanes, G. J. - - 285 

 Ronalds, SirF. - 187, 188, 209 

 Roscoe, H. E. - - 149, 150 

 Ross, Sir James - 288, 289 

 Ross, Sir John - - 289 

 Rosse, Lord - - 169 

 Routh, E. J. - - 127 

 Roy,Maj.-Gen. - - 207 

 Roy, C.S. ... 306 

 Royal Astronomical Society 



208, 212 

 Royal College of Chemistry 



194, 199 

 Royal College of Physicians 265, 



294, 295 



Royal College of Surgeons 265, 283 

 Royal Institution, founda- 

 tion - - 109, 213-4 

 Royal Society - 51,77,203-213 

 Royal Society of Arts - 211 

 Royal Society of Dublin - 211 

 Royal Society of Edinburgh 211 

 Rubber, commercial produc- 

 tion of - - 190 

 Riicker, A. - 160 

 Rumford, Count 27, 107, 108, 213 



