POYNTING RATTRAY 



Poynting, J. H. 



Density of earth 

 Papers 

 Poynting, J. H., and 



Physics 

 Prado, E. 



Geom. anal. 

 Prain, Sir D. 



Indian botany 

 Pratt, A. E. 



New Guinea 

 Preston, T. 



Light 



Theory of heat 

 Prestwich, J. 



Controverted quest. 



Geology 

 Preussische Akad. 



Abhandl. 



Sitzungsb. 

 Prideaux, E. B. R. 



Indicators 

 Price, T. S. 



Per-acids 

 Price, W. A. 



Electrical resistance 

 Priestly, J. 



Scient. correspondence 

 Princeton University. 



Contrib. from biol. lab. 

 Pring, J. N. 



Physical chem. 

 Pringle, A. 



Photo-micrography 

 Pringsheim, E. 



Physik der Sonne 

 Pringsheim, E. G. 



Reizbeweg. d. Pflanzen 

 Pringsheim, H. 



Variabilitat 

 Pritzel, G. A. 



Iconum botan. index 



Thesaurus lit. botan. 

 Proctor, R. A. 



Chance and luck 



Moon 



Myths of astr. 



Orbs around 



Other suns 



Our place 



Poetry of astr. 



Saturn 



Sun 



Progressus rei botan. 

 Putter, A. 



Vergleich. Physiol. 



Rattray, J., and Mill, H. R. 



5911 Forestry '634 



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