INDEX. 451 



Natural history, De Saussure on philosophy of 18 



Newberry, Prof. J. S., rocks arranged by 36 



Norton, Edward, translation of monograph on wasps 18 



Observations, Babbage on 187 



Observatories, centers of communication for telegrams of astronomical dis- 

 coveries 33 



Observatory at Cordoba, Doctor Gould's account of 265 



Orbits of planets, secular variations of 11 



Orton, William, liberality of 32 



Ostensacken, monograph of Diptera. . ^ 16 



Ostensackeu, on collecting and preserving insects 22 



Otis, Dr. G. A., approval of Jones's memoir 13 



Packard, A. S., on collecting and preserving insects 23 



Palmer, Joseph, taxidermist 36 



Parker, Peter, acts of, as Regent 148, 151, 155, 158 



re-elected Eegent , 151 



remarks on death of Agassiz 153 



report of Executive Committee 141, 147 



report on accounts of National Museum 147 



Pattou, Dr. A., antiquities of Knox County, Indiana, and Lawrence County, 



Illinois... .- 411 



Peale, Franklin, photograph's of collection of stone implements 29 



Pe.ale, Mrs. Caroline, photographs of collection of stone implements 29 



Perriue, Thomas M., antiquities of Union County, Illinois 410 



Peters, Dr. C. H. F., discoveries of planets, &c 32 



Photographic work by T. W. Smillie 56 



Pierson, William M., account of discovery of meteorite in^^exico 419 



Platycnemism in Michigan, H. Gillman 364 



Poland, L. P., acts of, as Eegent 148 



Population of the world, recent estimate of, by Ed. Mailly 282 



Prize questions of scientific societies : 



Dunkirli;, France 425 



Hainaut, France 426,428 



Naples, Italy 430 



Brussels, Belgium 432, 434, 436 



Haarlem, Holland 437 



Publications, general account of 9 



Publications in 1873, account of H 



Quetelet, eulogy on Babbage 183 



Raip and snow tables 11 



Eeceipts during 1873 143 



Eegents of the Institution, list of proceedings of 5, 148 



Repayments during 1873 144 



Report of Executive Committee 141, 146 



Report of Institution, printing of extras , 24 



Report of the Secretary 7 



Report on appropriations and disbursements for National Museum 146 



Riggs & Co., deposit with 151 



Riggs, George W., financial aid rendered by 8 



resolution of thanks from Board of Regents, to 155 



Rules for examination of specimens 56 



Rules of distribution of x:)ublications 9 



Runic iuscriptions, pretended 194 



