610 INDEX. 



Page. 



Navigation, an account of the rise of (Curtiss) 127 



Navy and Army, United States 2, 5 



Necrology 22 



Neuilly, American Red Cross Hospital at 3 



Nichols, Prof. George E. (Sphagnum moss: war substitute for cotton in absor- 

 bent surgical dressings) 221 



O. 



Observations, eclipse of the sun, June 8, 1918 5 



Officials of the Institution xi 



Orcutt, OR 32 



P. 



Padgett, Representative Lemuel P. (Regent) xi, 1, 2 



Paine, R. C 91 



Paleobotany: A sketch of the origin and evolution of floras (Berry) 289 



Palmer, William 91 



Pennell, Joseph 39, 41, 111 



Perelma, Ossip 18, 59, 110 



Permanent Committee, Board of Regents 108 



Petrie, W. M. Flinders (History in tools) 563 



Petronievics, Branislav (On the law of irreversible evolution) 429 



Phosphorus, two new modifications of (Bridgman) 195 



Physics, twentieth century (Millikan) 169 



Pickering, Director E. C S6 



Pleistocene cave deposit of western Maryland, a (Gidley) 281 



Poore fund, Lucy T. and George W 4, 103 



Postmaster General (member of the Institution) xi 



President of the United States (member of the Institution) xi, 1, 29 



Printing allotments 15 



Printing and publication (advisory committee on) 15, 101 



Problem of degeneracy, the (Tredgold) 547 



Problem of radioactive lead, the (Richards) 205 



Proceedings of the Board of Regents 107 



Psychic life of insects, the (Bouvier) 451 



Public Park Service, director of 13, 46 



Publications 15, 97 



R. 



I! .id inactive lead, the problem of (Richards) 205 



Rathbun, Richard, assistant secretary of the Institution xi, xn, 25, 110 



Raven, H. C 4, 27, 30, 110, 114 



Ratvenel, W. deC xn, 16, 42 



Receipts and disbursements, statement of 104 



Red Cross, Smithsonian Auxiliary of D. C. Chapter of 3 



Redfield, William Cox, Secretary of Commerce (member of the Institution).. xi 



Regents of the Institution xi, 1 



Reid, Addison T., fund 4, 103 



Remey , Charles Mason 39 



Reptile reconstruction in the United States National Museum (Gilmore) 271 



Researches and explorations 5, 44 



Researches on the structure of the trilobites (Walcott) 7 



Resser, Dr. C. E 7 



