■■■••> Naturu/;*!. 



and Development of 



Fecundation 103 287 



Philadelphia Academy Natural Sci- 



Fmakiohte 



Pineal Body in Ami 



Pinus nathorstii 



Pitticite , 



Pityophis s:;yi sayi.. 



Pseudomorph o 



Pseudosuchia *. 



Pteropelyx 



Pycnogonid Eye 



. Pycnogonid Studies 



Pyenaite 



Pythonomorpha , 



QUARTZ 

 Quartz and Feldsps 

 sions in Diabase 



Quartz Cry.u 







Poisonous N«| 



Heloderma 



Polyporus offici 

 Polyspermy in 



Popular Botany 



Porocephalu* ; 



RADIOLARIA.... 

 Raia batis 



Predates Genemm ' " 147 



P el i,toric Anthn p logy...'.'.'.'...!'' 



Indians Before the Congress... 



Pnze Dermatological Essay 



Prizes for the London Geological 



Problematic Organisms"!". .'.' 



Problem of Mann ■ 

 Proceedings of St 



Rectorite 



Reduction in the Appr 

 the U. S. Geologic 



Regeneration.; 



iieChemung-Cat 



