738 INDEX. 



Page. 



Dillon, E., bronze collection of... 651 



Dinwiddle, William.. 46,72 



Dividing engine, Repsold 109 



Dobrizhoffer's method of rain making 260 



Dogiel, researches by 467 



Dohrn, Dr. , director of Naples station 17 



Dollond telescope, imx^rovements in 109 



Doolittle. Professor, on variations of latitude 272 



Dorsey, J. Owen. 49,51,250 



Dosai, Japanese bronze artist 624 



Downes and Bhmt, cited 451 



Dragon tree of Orotava 547 



Drainage, composition of 217 



loss of nitrogen by 218 



Dreyer, canals of Mars seen by, in 1879 113 



Driiidisni, origin of 604 



Dn Bois-Reymond, Dr. E. , on natural science and art 84 



Duehenne, study of muscles by 405 



Dufferin, Lord, of Royal Geographical Society 321 



Dunn, Gilbert, on arctic exjiloring expedition 331 



Dutch, survival of early customs of . 593 



Dutch Guiana, exchange agency 64 



Dyer, Lieut. S. A. , on rain making 266 



Dynamographs, for recording mechanical forces of animals 394, 402 



Dynamos, increased size of 171 



Dyrenforth, R. G. , experiments in rain making 265 



E. 



Earth, crust of, variation in density 102 



density of interior of 102 



determination of radius of 99 



flattening of the, methods of determining 102 



moments of inertia of 103 



orbital velocity of 101 



Earthquakes, address on, mentioned 322 



effect on ocean 352 



Easter Island images 538 



Eckhardt, on heart nerves. . 466 



Ecuador, exchange agency 64 



collection from 43 



transmissions to 66, 67 



natural history 64 



Egypt, exchange agency . 64 



transmissions to 66, 67 



Egyptian architecture, curves in 577 



chronology 596 



type of Guanches 547 



Egyptians, astronomical knowledge of 94 



Eldridge, George H. , on phosphates 230 



Electric activity, unit of - 147 



Electric and telephonic service in National Museum xxiv 



Electric capacity, unit of 146 



