103 



BIOLOGICAL SOCIETY OP WASHINGTON. 



Pago. 



Name of the Society 21, 24, 102 



Nares, Sir George S 40 



National Museum 2(1, 27, 30, 31, 3S, 37, 40, 44 



Nature, Scientific and Popular Views of. 37 



Nelson, Mr. E. \V 10 



Newberry, Prof. J. S 30 



Norris, Dr. Basil 10 



O. 



Object of the Society 21 



Odontoscelis Darwin ii 71 



Officers 7 



Officers, classification of 21 



Officers, election of. 22, 23 



Officers for 1880 25 



Officers for 1881 26 



Officers for 1882 35 



Officers, term of office 22 



Opalization 3:) 



Opheosatirus ventral is 35 



Order of business 23 



Order of business, suspension of. 23 



Ornithology, advances m 38 



Osteu Sackcn, Baron R. von 36 



Packard, A. S., Jr 10 



Papers, reading and discussion of. 21, 23 



Patagonia, insect fauna of. 71 



Patton, Mr. VV. H 17, 24, 28, 30 



Peale, Titian It 30 



Pergande, T 17, 30 



Periodicity, laws of 28 



Periodicity, Septenary 28 



Petrifaction 33 



Phenomena, anthropologic, categories of..... 0G 



Phenomena, biologic, categories of. 00 



Phenomena, classification of GO 



Phenomena, physical, categories of. 66 



Philosophy, classification of. 01 



Philosophy, definition of GO 



Philosophy, metaphysic 02 



Philosophy, scientific 03 



Philosophical Society 30, 41, 42, 43 



Photomicrographs 27, 31 



Pilocarpus pinnatifolins 31 



Polymorphism, animal .' 41 



Porter, Dr. J. II 17 



Potomac Side Naturalist's Club 30 



Pourtales, Count L. F. Do 36 



Powell, Rev. Baden 50, 53 



Powell, Major J. VV 17, 37, 30, 42, 43, GO 



Powell on Darwin's Contribution to Philoso- 

 phy 00-70 



Powell, Introduction to Saturday Lectures... 37 

 Powell on Sociology 39 



Pago. 



Prehension, suctorial 2T 



Prentice on Jabirandi 31 



Prentiss, Dr. D. W 7, 17, 28, 30, 31 35, 30, 38, 44 



Prentiss on Mesmerism in Animals 38 



President, duties ol 22 



President, retiring 22 



Presidential address 22 



Presidential address for 1881 26 



Presidential address for 1882 30 



Proceedings, printing of 44 



Proceedings of the Society 24-44 



Programme, provision for 22 



Pronuba 27, 80 



Prodoxus 27 



Pseudomorphs 33 



Pusa lutiis 33 



Quorum . 



21 



R. 



Rabbits, Septicaemia in 29 



Rathbun, Mr. Richard 3, 7, 17, 24, 25, 20, 30, 34, 



33, 42, 44 

 Rathbun on Explorations of Fish Commis- 

 sion 34 



Ran, Dr. Chas 17 



Renilla, Embryology of. 41 



Retardation of Growth 34 



Reyburn, Dr. Robert 17 



Khytina Stelleri 30, 37 



liichcy, Dr. S. 17 



Rid g way, Robert 17,25,30,32,35 



Ridgway on Turkeys 32 



Riley, Prof. C. V..17, 24, 25, 26, 27, 28, 20, 30, 31, 32, 

 34, 35, 39, 41, 42, 43, 44, 70, 70, SO 



Riley on Darwin in Entomology 70-77 



Riley, Facts about Animals 39 



Riley, Fertilization of Yucca 27 



Riley, Reminiscences of Darwin 77 



Riley on Retardation of Growth 34 



Riley on Locusts 32 



Riley on Scale Insects 31 



Riley on Suckers of the Ilelgramite, etc 28 



Roan Mountain and its Flora 28 



Russell, Mr. I. C 17 



Ryder, Mr. John A 17,33 



Ryder on Development of Shad 33 



s. 



Salmon of Pacific Coast 26 



Sandpiper, Spoonbilled 44 



Saturday Lectures 37 



Scale insects 31 



Schaeffer, E. M 17,33 



Sehouborn, Mr. H IT 



