ANALYTICAL INDEX. 



PORES, of bodies, 12 ; of the universe, 278. 



PORTUGUESE, a colony of, in Africa, 755. 



POTATOS, daily consumption of, by the Irish labourers, 895. 



POTTER, Dr., on the state of the blood in yellow fever districts^ 

 1038, 1039. 



POUILLET, on the annual amount of caloric received by the earth 

 from the sun, 273, note ; on the source of atmospheric electri- 

 city, 312, 316. 



PREVOST, his theory of the equilibrium of temperature, 192. 



PRICHARD, Dr., on the vital principle, 505 ; on the unity of the 

 human race, 732 ; on the origin of the Scythians, Saxons, 

 Getae, Thracians, Goths, and Sarmatians, 734 ; on the affinities 

 of different languages, 734 ; on Sanscrit names of the Sun, 

 737, note, and 1739 ; on the mean duration of life in different 

 climates, 772 ; thinks that climate has very little influence on 

 the complexion of mankind, 747, 753 ; that the natives of Van 

 Dieman's Land came from New Guinea, 750 ; on the organic 

 constitution of the negro race, 1009. 



PRIESSNITZ, the diet of his patients, 714 ; establishes a great pa- 

 thological principle, 1069; his theory of disease, and often 

 murderous treatment, 1070. 



PRIESTLEY, imitates the auroral lights, 366, note ; his experiments 

 on respiration, 538. 



PROUT, Dr., on the theory of volumes, 57 ; on the divisibility of 

 chemical atoms, 73 ; supposes that the laws of nature have 

 changed, 242 ; on the elastic force of the atmosphere, 290 ; on 

 the objects of physiological inquiry, 624 ; maintains that the 

 phenomena of life are wholly removed from the logic of quantity, 

 556. 



PYRAMIDS, monuments of the ancient Pagan Fire Worship, 743, 

 note. 



PYTHAGORAS, his theory of the solar system, 33, note ; his theory 

 of atoms, 46 ; on the self-moving principle of all things, and on 

 his physical trinity, 47 1 ; on the music of the spheres, 472 ; its 

 influence on the mind of Kepler, 472. 



QUADRUPEDS, not common to the Old and New Worlds, except 

 north of the Baltic and of Canada, 744. 



QUETELET, on the average stature of students at Cambridge, 723 ; 

 on the relative strength of males and females, 634 ; on the fe- 

 cundity of nations, 776 ; longevity of town and country, 766 ; 

 mortality of infants in Belgium in winter, 767 ; on the ex- 

 istence of different primitive races, 730 ; on the failure of all 

 methods in the treatment of epidemics, 820. 



RACES, relative capacity of the skull in, according to Dr. Morton, 



