260 



ANNALS NEW YORK ACADEMY OF SCIENCES 



Observations on Birds and Fishes 

 Made on an Expedition to 

 Florida Waters, J. T. Nichols 

 [Abstract], 198, 199 



Observations on Volcanoes of Guate- 

 mala, D. D. Condit [Abstract], 

 197 



Officers, Election of, 221 



Ohio, The Sands of, D. D. Condit [Ab- 

 stract], 209, 210 



Oklahoma, Pennsylvanian fossils from, 

 119-156 



Olivine augite norite of the Cortlandt 

 Series, 38 



Olivine pyroxenite of the Cortlandt 

 Series, 44 



Onagra, Cryptomeric Inheritance in, 

 C. Stuart Gager [Abstract], 186 



On Some New Genera and Species of 

 Pennsylvanian Fossils from the 

 Wewoka Formation of Okla- 

 homa, George H. Girty, 119-156 



On the Limbs of Eryops and the 

 Origin of Limbs from Paired 

 Fins, W. K. Gregory [Abstract], 

 190, 192 



On the Occurrence of Opal in North- 

 ern Nevada and Idaho, G. F. 

 Kunz [Abstract], 213, 214 



Oolites of Central Pennsylvania, 

 The Siliceous, Victor Ziegler 

 [Abstract], 219 



Opal in Northern Nevada and Idaho, 

 George F. Kunz [Abstract], 213, 

 214 



Origin of Limbs from Paired Fins, 

 W. K. Gregory [Abstract], 190, 

 192 



Original gneissoid structure of the Cort- 

 landt Series, 55 



Orestes nodosus, 136, sp. nov., 137 

 subgen. nov., 136 



Organization of the New York Academy 

 of Sciences, 227-240 



Origin of the Cortlandt Series, 77 



Origin of garnet, 7 



Origin of corundum, 78 



Orthoceras tuba sp. nov., 142 



Osgood, — , cited, 108 



Paired Fins, Further Notes on the 

 Evolution of, W. K. Gregory 

 [Abstract], 216 



Paired Limbs of Terrestrial Verte- 

 brates, W. K. Gregory [ Abstract] , 

 219 



Paleolima fasciculata, 134 



Parsons, C. W., Active Member, 185 



Pedersen, F. M., Fellow, 221 



Pegmatite of the Cortlandt Series, 47 



Pelecypoda of the Wewoka Formation, 

 131 



Pennsylvanian fossils from Oklahoma, 

 119-156 



Peridotite of the Cortlandt Series, 45 



Perret, Frank A., 1909 Eruption of 

 Teneriffe and the Great Erup- 

 tion of Etna in March and 

 April, 1910, The [Title], 189 



Petrographic description and analyses 

 of Ravenswood granodiorite, 2 



Petrography of the emery and asso- 

 ciated rocks of the Cortlandt 

 Series, 68 



Petrology of the Cortlandt Series, 20 



Pharkidonotus subgen. nov., 138 



Pheasant Expedition to Asia, C. Wil- 

 liam Beebe [Abstract], 216, 217 



Pirsson, L. V., cited, 79 



Pleurotomaria ? tumida, 141 



Plutonic rocks of the Cortlandt Series, 

 20 



Poffenberger, A. T., Reaction Time for 

 Different Retinal Areas [Title], 

 218 



Poor, Charles Lane, Vice-President, 222 



Porpoise from Japan, 198, 199 



Poulton, Edward B., Honorary Member, 

 221 



Practical Utility of Flying Ma- 

 chines, Hudson Maxim [Title], 

 187 



Pratt, J. H., cited, 67, 78, 79, 85 



Preferred Length of Interval, J. E. 

 Wallace Wallin [Abstract], 200, 

 201 



Presidential Address, Franz Boas, 177- 

 183 



