756 INDEX. 



Page. 



National Zoological Park, receipts and expenditures of xxx 



roads in 38 



Secretary's report on 34 



sewers in xxxix 



Superintendent's report on 68 



Natural gas, rock pressure of 83 



science and art, relation of 84 



sciences, benefit of study of 6fi3 



methods of studying 692 



Navajo dyestuffs, Washington Matthews on 84 



Naval architecture of North of Europe . 86 



Navigation, aerial, progress in 670 



marine, development of 072 



Navy Department, foreign exchanges of 62 



Nectar Canal on Mars _ . 114 



Neo-Celtic art, origin of 604 



Neolithic Age in Canary Islands 546 



Neptune, discovered by Leverrier 157 



distance of 1 111 



Nerve and muscle fiber, Humboldt's experiments on 690 



Nerves, propagation of electricity in 441 



stimulating power of 442 



variations of temperature caused by 392 



Nervous centers, inhibitory action of 383 



system, action of 382 



development of 444 



reason for existence of 443 



relation to muscles and bones 411 



stimulator of senses ._. 444 



Netherlands, exchange agency 64 



transmissions to 66, 67 



New Caledonia, exchange agency 64 



Newcomb, Simon, on Eulerian Period 278 



latitude variation 276 



rain making 363,264,269 



Newfoundland, exchange agency 64 



New South Wales, exchange agency 64 



transmissions to 66, 67 



Newtonian theory of gravitation 97 



New Zealand, exchanges with. 64, 66, 67 



former size of 302 



fossils in 300 



Nez Perce Indians, vocabulary of 52 



Niagara Falls, titilized for electric power 171 



Nicaragua, ants nests in 500 



Nicetas, astronomy taught by 95 



Nikko, Japan, bronzes at 621 



Nile Valley, origin of tribes of 600 



Nilus on planet Mars 115 



Nimes, Maison-Carree at 573 



Nimroud, excavations at 705 



Nitrate soils in tropics 226 



Nitrogen, conservation of... ,.,.., 225 



