108 



BIOLOGICAL SOCIETY OP WASHINGTON. 



N. 



Page. 



N&,Tne of the Society 21, 24, 102 



Np.res, Sir George S 40 



National ."iliiseiim 2(!, 27, :iO, :}i, rjf), 37, 4(1, 44 



Nature, Scientific and Popular Views of. 37 



Nelson, Mr. E. W 10 



Newberry, Prof. J. S 3G 



Norris, Dr. Baail 10 



Object of the Society 21 



Odonto.scelis Darwinii ., 71 



Officers 7 



Officers, classification of 21 



Officers, election of. 22, 23 



Officers for 1881) 25 



Officers for 1S81 26 



Officers for 1882 35 



Officers, term of office 22 



Opal izat ion 33 



Opiioosaurus ventralis 35 



Order of busine.ss 23 



Order of business, suspension of. 23 



Ornithology, advances m '. 38 



Osten Sackcn, Baron R. von 36 



Packard, A. S., Jr 10 



Papers, reading and discussion of. 21, 23 



Pata:;onia, insect fauna of 71 



Patton, .Mr. W. H 17,21,28,30 



Peale, Titian R ; 36 



Pergande, T 17, .30 



Periodicity, laws of 28 



Periodicity, Septenary 28 



Petrifaction , ,33 



Plienomena, anthropologic, categories of.... CO 



Phenomena, biologic, catego'ies of. 66 



Phenomena, classification <if CO 



Phenomena, physical, categories of CO 



Philosophy, classilicatinn of 01 



Philosojihy, definitiiin of CO 



Pliilosophy, metaphysic 02 



Piiilosopjiy, scientific 03 



Philosophical Society 30, 41, 42, 43 



Pliotomicrogiaphs 27, 31 



Pilocarpus piuniitifolius 31 



Polymorphism, animal 41 



Porter, Dr. J. H 17 



Potomac Sliie Naturalist's Club 30 



Pourtales, Count L. F. De 30 



Powell, Rev. Baden .50,53 



Powell, Major .J, \V 17, 37, 39, 42, 43, CO 



Powell on Darwin's Contribution to Philoso- 

 phy 00-70 



Powell, Introduction to Saturday Lectures... 37 

 Powell on Sociology 30 



Pago. 



Prehension, suctorial 27 



Prentice on .laViiraiidi 31 



Prentiss, Dr. D. W 7, 17, 28, 3i), 31 35, 30, 38, 44 



Prentiss on Mesmerism in Animals 38 



President, duties of 22 



President, retiring 22 



Presidential address 23 



Presidential address for 1881 26 



Presi<]cntial address for 1882 36 



Proceedings, printing of 44 



Proceedings of the Society 24-44 



Programme, provision for 23 



Pronnba 27, 80 



Prodoxus 27 



Pseudomorphs 33 



Pusa lutris 33 



Quorum _ 21 



R. 



Rabbits, Septiecemia in 29 



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



35. 42, 44 

 Rathbun on Explorations of Fish Commis- 

 sion 34 



Ran, Dr. Chas 17 



Renill.a, Embryology of 41 



Retardation of Growth 34 



Reyburn, Dr. Robert 17 



Rhytina Stelleri 30, 37 



Richey, Dr. S. 17 



Ridgway, Robert 17, 25, 30, 32, 35 



Ridgway on Turkeys 32 



Riley, Prof. C. V..17, 24, 25, 20, 27, 28, 20, 3(), 31, 32, 

 34, 35, 30, 41, 42, 43, 4-1, 70, 79, 80 



Riley on Darwin in Entomology 70-77 



Riley, Facts about Anim;ds ,39 



Riley, Fertilization of Yucca 27 



Riley, Reminiscences of Daiuin 77 



Riley on lictardation of Growth 34 



Riley on Locusts 32 



KMley on Scale Insects 31 



Riley on Suckers of the Ilelgramite, etc 28 



Roan Mountain and its Flora 28 



Russell, .Mr. 1. C 17 



Ry<ler, Mr. .lohn A 17,33 



Ryder on Development of Shad 33 



S. 



Salmon of Pacific Coast 26 



Sandpiper, Spoon billed 44 



Satiiniay Lectures 37 



S'-ale insects 31 



Schaeffer, E. M 17,33 



Schonborn, Mr. LI 17 



